Large Prominence and Chromosphere in Motion – Solar Session from 19th Sept 2021 With Photos and Time Lapse
Captured on September 19th, 2021, from Dark Sky® Alqueva region, Portugal, with a telescope equipped with a Daystar Quark filter at the wavelength of Hydrogen-Alpha, the high-resolution image features a wonderful solar prominence visible in great detail around the sun’s limb. Due to a good atmospheric conditions and stability, it was possible to record a nice time lapse video sequence taken between UT 11h32 and UT 12h51 (Universal Time) to help reveal all the solar dynamics and activity in motion. It’s possible to see a lot of interesting changes in the shape of prominence structures, as well as, fine spicules surrounding the solar disc and some slower motion in the chromosphere of the sun (surface). The images also captured minor and fast eruptive prominences appearing around the limb’s disc. The video zoomed to a crop close-up into some sequences to highlights the spectacularity and details in the solar activity. I edited the time lapse with music to be more immersive while enjoying, but you can switch of the sound, to be less distractive and notice better what is going on.
PT: Captada a 19 de Setembro de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio equipado com um filtro solar Daystar Quark – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma incrível promeminência solar visível em grande detalhe ao redor do limbo do sol. Devido a boas condições atmosféricas e de estabilidade, foi possível registar uma sequência time lapse captada entre UT 11h32 e UT 12h51 (Tempo Universal) para ajudar a revelar toda a dinâmica solar e actividade em movimento. É possível ver muitas mudanças interessantes na forma e estrutura das proeminência, bem como espículas finais e aguçadas que aparecem ao redor do disco solar, assim como algum movimento mais lento na cromosfera do sol (superfície). As imagens também captaram proeminências eruptivas menores e rápidas aparecendo ao redor do limbo. O vídeo faz um zoom-in nalguns trechos, para permitir em close-up destacar a espetacularidade da actividade solar. Eu editei o timelapse com música para ser mais envolvente enquanto o leitor desfruta, mas pode desligar o som, para ser menos distrativo e permitir assim apreciar melhor os detalhes.
Below and above are some still shots presented in a portrait, landscape, or monochromatic version, intended to help conduct the reader attention to the most interesting parts of the image. All the images have been captured at different times, over the course of 1h20m.
PT: Em baixo e acima estão algumas fotos apresentadas em uma versão retrato e paisagem, bem como em uma versão monocromática, com o objetivo intencional de ajudar a conduzir a atenção do leitor para as partes mais interessantes da imagem. Todas as imagens foram captadas em minutos diferentes, no decorrer de 1h20m.
Below is possible to watch the video time lapse compiling 135 shots processed, each one as result of a stack of the best 250 frames from each raw video. The final result is a 3K high resolution time lapse movie comprising 1h20 of images.
PT: Em baixo é possível ver o vídeo time lapse compilando 135 captações processadas, cada uma como resultado de um stack dos melhores 250 frames de cada vídeo raw. O resultado final é um filme time lapse de alta resolução de 3K que compila 1h20 de imagens.
Technical details | Detalhes Técnicos
SW Esprit 120ED Professional | EQ-6 Pro mount | Daystar Quark Chromosphere filter| ASI174MM | ZWO EAF | Stack of 250 frames for each single image, captured in good seeing conditions (average of 1,22 ” arcs) from Dark Sky® Alqueva territory, Portugal.
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Planet Saturn Surrounded by Colorful Stripes
The planet Saturn has the most extensive and spectacular ring complex of any planet in the Solar System. Consisting essentially of a mixture of ice, dust and rocky material, they can reach a few hundred thousand kilometers in diameter, but do not exceed 1.5 km in thickness. Captured from Cumeada Observatory, headquarters of the Dark Sky® Alqueva Reserve, on 16th July 2021, at 01h58 UTC, just a few days before reaching the opposition. The image reveals nice and colorful stripes around the planet’s atmosphere, as seen in different hues. The gold and yellowish bands seen in Saturn’s atmosphere, are the result of superfast winds in the upper atmosphere, which can reach up to 1,800 km/h, around the equator. Being made up mostly of hydrogen and helium, the Ringed Planet is the least dense of all the planets, and is the only one less dense than water. If there were a bathtub big enough to hold it, Saturn would float in it.
PT: O planeta Saturno possui o complexo de anéis mais extenso e espetacular de qualquer planeta do Sistema Solar. Consistindo essencialmente de uma mistura de gelo, poeira e material rochoso, podem atingir algumas centenas de milhares de quilómetros de diâmetro, mas não ultrapassam 1,5 km de espessura. Captada no Observatório da Cumeada, sede oficial do Dark Sky® Alqueva, no dia 16 de Julho de 2021, à 01h58 UTC, poucos dias antes de atingir a oposição. A imagem revela assim uma atmosfera rica e colorida, com várias faixas de diferentes tonalidade ao redor do planeta. As faixas douradas e amareladas vistas na atmosfera de Saturno, são o resultado de ventos super rápidos na alta atmosfera, que podem chegar a 1.800 km/h, ao redor do equador. Sendo composto principalmente de hidrogénio e hélio, este Planeta anelado é o menos denso de todos os planetas, e é o único menos denso que a própria água. Se houvesse uma banheira grande o suficiente para contê-lo, Saturno flutuaria nela.
Technical details | Detalhes Técnicos
Camera ASI174MC | C14| ZWO ADC | Barlow 2,5x Televue Powermate | Captured in Color | Average sum of 2000 frames for each sequence, using about 40 minutes of stacking. Processing on AutoStakkert, Registax 6 and Photoshop CC. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
Planet Jupiter as seen One Month Before the Opposition
The image reveals some nice details and ovals on Planet Jupiter as seen on July 16th at 02h54 UTC from Cumeada Observatory, headquarters of Dark Sky® Alqueva Reserve, Portugal, captured almost one month before the opposition.
PT: A imagem revela o gigante gasoso planeta Júpiter visível a 16 de Julho de 2021 às 02h54 UTC, captado a partir do Observatório da Cumeada, sede da Reserva Dark Sky® Alqueva, um mês antes de atingit a sua oposição.
Technical details | Detalhes Técnicos
Camera ASI174MC | C14| ZWO ADC | Barlow 2,5x Televue Powermate | Captured in Color | Average sum of 2000 frames for each sequence, using about 16 minutes of De-rotation. Processing on AutoStakkert, Registax 6 and Photoshop CC. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
The Crowded Starfield Around Lagoon, Trifid and NGC 6559
A deep wide scene shows the dusty and crowded starfield which surrounds Sagittarius constellation, spanning in the direction of the galactic core of Milky Way. Three bright nebulae are visible, as well as two small globular clusters against the brightest dusty part of this background field divided by dark and light regions. M8 or the Lagoon Nebula, is the largest emission nebula and a stellar nursery visible, and close to the left, shines NGC 6559, a nebulae complex which seems to be separated from the Lagoon by a dark dust lane, also containing dark nebulae B91 and B303, and the bright nebulae IC 4684, 4685 and IC 1274/5. Far from NGC6559 in the opposite direction and close to the edge of the image, lies the colorful Trifid Nebula M20, a complex of red emission and blue reflection nebulosity intersected by three dark lanes, from which the Trifid gets its own name. Close to Trifid, it’s also visible a rich open cluster of bluesish stars known as M21. Captured in Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
PT: Um cenáro amplo e profundo mostra o campo estelar empoeirado e lotado de estrelas que circunda a constelação de Sagitário, que se estende na direção do núcleo galáctico da Via Láctea. Três nebulosas brilhantes são visíveis, bem como dois pequenos aglomerados globulares que brilham contra a região de poeira mais brilhante deste pano de fundo dividido por zonas claras e escuras. M8 ou a Nebulosa da Lagoa, é a maior nebulosa de emissão e berçário estelar visível na imagem, e próximo deste, mais à esquerda, brilha NGC 6559, um complexo de nebulosas que parece estar separado da Lagoa por uma faixa de poeira escura, também contendo as nebulosas escuras B91 e B303 e as nebulosas brilhantes IC 4684, 4685 e IC 1274/5. Na direcção oposta e longe da NGC6559, próximo do extremo da imagem, encontra-se a colorida Nebulosa Trífida M20, um complexo de emissão vermelha e nebulosidade de reflexão azul, cruzada por três faixas escuras, das quais a Trífida recebe o seu nome. Perto da M20, também é visível um rico aglomerado aberto de estrelas azuladas, conhecido como M21. Captada no Observatório da Cumeada, Sede Oficial do Dark Sky® Alqueva, Reguengos, Portugal.
Technical details | Detalhes Técnicos
Canon fixed prime lens 300mm f/2,8 + Canon 6D not modified | ISO1600 – Exp. of 60 seconds. Total of 48 lights | Mount EQ6 Pro – Auto-guiding off |Total integration of 48 minutes. Processing on PixInsight 1.8.8-8 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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A Blue Horse Head is Shining in Space Surrounded by Faint Dust
Located at a distance of 400 light-years in the constellation of Scorpius, lies a wonderful nebula named IC4592 but better known by it’s well distinguished shape of a Blue Horse Head. The entire area is part of a large and colorful molecular cloud in Scorpius and Ophiuchus. The blue reflection nebula is made up of very fine interstellar dust particles that reflects the visible light of energetic nearby stars, as Nu Scorpii, the bright blueish star which marks the eye of the Horse. Immersed in the brownish dust, is visible a second reflection nebula named IC 4601 surrounding two stars. The whole field captured with a 300mm fixed prime lens, can also reveal in the background sky some of the faintest dust which seems to surround the main nebula.. Captured from Cumeada Observatory, official headquarter of Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
PT: Localizada a uma distância de 400 anos-luz na constelação do Escorpião, encontra-se uma incrível nebulosa chamada IC4592, mas mais conhecida pela sua forma distinta de uma Cabeça de Cavalo Azul. Toda a área faz parte de uma grande e colorida nuvem molecular situada na cosntelação do Escorpião e Ofiúco. A nebulosa de reflexão azul é composta por partículas de poeira interestelar muito finas que refletem a luz visível de estrelas energéticas próximas, como Nu Scorpii, a estrela azul brilhante que marca o olho do Cavalo. Imerso na poeira acastanhada, é visível uma segunda nebulosa de reflexão chamada IC 4601 em torno de duas estrelas. Todo este campo profundo captado com uma lente fixa de 300mm, revela ainda no céu de fundo alguma da poeira mais ténue que parece circundar a nebulosa principal. A imagem foi captada a partir do Observatório da Cumeada, Sede Oficial do Dark Sky@ Alqueva, Reguengos de Monsaraz, Portugal.
Technical details | Detalhes Técnicos
Canon fixed prime lens 300mm f/2,8 + Canon 6D not modified | ISO2000 – Exp. of 95 seconds. Total of 176 lights | Mount EQ6 Pro – Auto-guiding off |Total integration of 279 minutes (5h). Processing on PixInsight 1.8.8-7 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Eagle Nebula in a Colorful Deep Field
The image shows a young open cluster of stars in the constellation Serpens Cauda, surrounded by a colorful deepsky field of glowing gas, known as the Eagle Nebula, M16. Located at a distance of 7,000 light-years away from us, the nebula features a dusty sculpture made famous by the Hubble Space Telescope’s close-up, known as the “Pillars of Creation”. These dense, dusty pillars, with light-years in length, are the location of new star formation, and are sculpted by the stellar winds from nearby newborn stars. At left of the main pillars is another dusty starforming column known as the Fairy of Eagle Nebula. The gas and dust in the giant cloud of M16, has given birth to hot and young stars in the star cluster embedded in the nebula. The ultraviolet energy from these stars cause the nebula to glow with red hues, from the ionized hydrogen-alpha emission.
PT: A imagem mostra um jovem aglomerado aberto de estrelas na constelação Serpens Cauda, rodeado por um campo profundo de gás brilhante, conhecido como a Nebulosa da Águia, M16. Localizada a uma distância de 7.000 anos-luz de nós, a nebulosa apresenta uma escultura empoeirada que ficou famosa pelo close-up do Telescópio Espacial Hubble, conhecida como “Pilares da Criação”. Esses pilares densos e empoeirados, com vários anos-luz de comprimento, são o local de formação de novas estrelas e são esculpidos pelos ventos estelares de estrelas recém-nascidas próximas. À esquerda dos pilares principais está outra coluna densa de formação de estrelas conhecida como a Fada da Nebulosa da Águia. O gás e a poeira na nuvem gigante da M16 ,deram origem a estrelas jovens e quentes no aglomerado de estrelas embutido na nebulosa. A energia ultravioleta dessas estrelas faz com que a nebulosa brilhe em tons vermelhos, a partir da emissão ionizada de hidrogénio-alfa.
Technical details | Detalhes Técnicos
Nikon D810a | GSO RC8 F/8 1624mm – Ritchey-Chrétien Astrograph Carbon Fiber| ISO2500 – Exposures 5 min x 83 lights | Mount EQ8 Pro |Total integration of 83 Lights: 415 minutes (6,9h). Processing on PixInsight 1.8.8-7 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
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Moonrise Crossing an Inversion Layer Showing the Rare Lunar Red Flash
The image and video time lapse shows the full moonrise of last June 24, 2021, vividly orange in color above a hill made by rocky wastes from an extraction of marble, in Borba. In the foreground, blurred greenish hues belongs to a vineyard which is out of focus in the frame for being not faraway from my 600mm telephoto lens. Above the horizon, a sequence of shots shows the moon rising while seems to immerse into a layer of strong temperature inversion, where warm air is above colder air, creating the right conditions to show a rare phenomenon known as lunar “red flash”. On the second moon of the still photo sequence, is visible a red flash below the disc, appearing detach from the main body itself. Expert Les Cowley explains on his Atmospheric Optics website, “when crossing the layers, light rays bend so that they are reflected up and down. This phenomenon is the result of mirages and color separation. We usually see a green flash when the Sun or Moon dips down into the inversion.The near horizon moon has an upper green rim (green because much blue light is scattered away) and a lower red rim. A mirage is needed to magnify these into a green or red flash. The “Etruscan Vase” or “Omega mirage” is formed by refraction across the temperature/density gradients of warm air beneath cooler.” .
PT: A imagem e vídeo time lapse, revelam o nascer da lua cheia no passado dia 24 de Junho de 2021, com uma cor vívida laranja, acima de uma colina formada por resíduos rochosos de uma extração de mármore, em Borba. No primeiro plano, os tons esverdeados pertencem a uma vinha que está desfocado no enquadramento por não estar muito longe da minha teleobjetiva de 600 mm. Acima do horizonte, uma sequência de fotos mostra a lua nascendo enquanto parece imergir de uma camada com uma forte inversão de temperatura, onde o ar quente está acima do ar mais frio, criando as condições certas para mostrar um fenómeno raro, conhecido como “flash vermelho” lunar. Na segunda lua da sequência fotográfica estática, é visível um pequeno “flash” vermelho alongado logo abaixo do limbo, que se parece desprender do próprio disco lunar. O especialista britânico Les Cowley explica no seu site Atmospheric Optics, “ao cruzar as camadas, os raios de luz curvam-se de modo que são refletidos para cima e para baixo. Este fenómeno é o resultado de miragens e separação de cores. Normalmente vemos um flash verde quando o Sol ou a Lua mergulha na inversão. A lua próxima do horizonte, tem uma borda verde superior (verde porque muita da luz azul é espalhada) e uma borda vermelha inferior. Uma miragem é no entanto necessária para ampliar actuante como uma lente gigante, tornando assim visível o flash verde ou vermelho. O “Etruscan Vase” ou “Miragem Omega” é formado pela refração através dos gradientes de temperatura – densidade do ar quente abaixo do mais frio. “.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Milky Way Shines in a VR 360º Starry Labeled Scene above São Domingos Mine
Captured on the wonderful century old mine of São Domingos, in Achada do Gamo, Dark Sky® Alqueva – Mértola, an all sky and 360º Virtual Reality scene features the arch of Milky Way shining high in the Sky. Summer Triangle highlights the center of the image, with blueish Vega near the top. At the upper left corner – in the beginning of the Milky Way – a bright elliptic and diffuse dot is the light coming from Andromeda Galaxy. In the opposite direction, close to the horizon shines the dusty core of the galaxy also reflected in a puddle of acid water. On the left side of the all sky scene – lies planets Saturn and Jupiter, visible with its bright light. Below is available two Virtual Realities 360º of this scene. One with the single image, and another with a labeled version where constellations and main deep sky objects visible are identified as a celestial planisphere. All the asterism lines and identifications were made manually by me. You can experience a full 7K resolution using your desktop, or smartphone with gyroscope. A great “in loco” experience can be achieved if you wear a VR glasses.
Above is available the Virtual Reality 360º in a labeled version where constellations and main deep sky objects visible are identified as a celestial planisphere. A great “in loco” experience can be achieved if you wear a VR glasses.
Acima está disponível a Realidade Virtual 360º em uma versão anotada em que se podem apreciar os asterismos das constelações e os principais objetos do céu profundo visíveis, assim identificados como num planisfério celeste. Uma ótima experiência “in loco” pode ser alcançada se usar óculos de realidade virtual.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Andromeda Galaxy Shining Perfectly Aligned with a Chimney in a Single Photo Exposure
Featured as NASA’s APOD – Astronomy Picture of the Day a deep nightscape scene shows a single shot photo made with Polarie U tracking portable mount of the entire Andromeda Galaxy M31 rising, while it was perfectly aligned above one of the chimneys from the century old mine of São Domingos, in Achada do Gamo, Dark Sky® Alqueva – Mértola. With approximately 4 times the angular size of the full moon as seen from Earth, the great spiral galaxy Andromeda is at a mere 2.5 million light-years distant from us, being the closest large spiral to our own Milky Way. In really dark places we can clearly distinguish this naked eye galaxy, the image though, captured with a Nikon D850 modified camera and a 105mm Sigma Art lens set to f/2 with an ISO2500, could reveal during this single short exposure of 25 seconds, much more interesting details like the spiral violet arms from Ha light emission, involved in the oblong faint bluish white dust, as well as, the satellite companion galaxies of M110 (elliptical shape visible above) and M32, with its peculiar round diffuse shape located below, in the most outer arm. To enjoy a behind the scene editing of this single image, please see and follow my Intagram Page.
PT: Destacada como NASA’s APOD – Astronomy Picture of the Day a imagem mostra uma paisagem nocturna profunda de uma única exposição fotográfica feita com seguimento sideral, através da montagem portátil Polarie U, onde é possível ver a galáxia de Andrómeda M31, enquanto nascia e se encontrava perfeitamente alinhada acima de uma das chaminés da mina centenária de São Domingos, na Achada do Gamo, Dark Sky ® Alqueva – Mértola. Com aproximadamente 4 vezes o tamanho angular da lua cheia vista da Terra, a grande galáxia espiral de Andrómeda está a apenas 2,5 milhões de anos-luz de distância de nós, sendo a grande espiral mais próxima da nossa Via Láctea. Em lugares realmente escuros como o Dark Sky® Alqueva, podemos distinguir claramente esta galáxia a olho nu, a imagem porém, captada com uma câmara modificada Nikon D850 e uma lente Sigma Art de 105 mm ajustada para f/2 e com ISO2500, pôde revelar durante uma curta exposição singular de 25 segundos, detalhes muito mais interessantes, como os braços em espiral de cor violeta provenientes da emissão de luz H-alfa, envoltos na poeira oblonga e azul esbranquiçada, bem como as galáxias satélite M110 (forma elíptica visível acima) e M32, forma peculiar difusa e redonda, localizada abaixo, no braço mais externo da galáxia. Para ver um “behind the scene” da Edição desta exposição singular, aceda e siga a minha página de Intagram.
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International Space Station as Seen in H-alpha Crossing the Solar Disc
The image shows the International Space Station (ISS) silhouette while crossing the Sun´s disc at a distance of 436.29km from us at a speed of about 7.38km/s. The ISS completes an entire orbit around Earth each 90 minutes. Carrying on board astronauts, the large artificial satellite orbiting our planet with a width of 108.5 meters seems although very small when compared with the Solar disc with an angular size of 31.5′ is actually 29.2 times larger than the ISS in the moment of the passage. Hard to see it even with a special telescope equipped with Ha filters, only the fast video camera shutter set to an high speed frame rate could capture this rare moment that happens in a blink of an eye, as it was seen from Redondo, Dark Sky® Alqueva Reserve, Portugal, on June 6, 2021, at 13h20m11s (UT 12h20m11s) with a total duration of only 0,55 seconds. Its very interesting to recognise on the picture the ISS structure with the solar panels and main body elements well distinct. The image also shows in great detail, spicules and supergranulation in the surface of the Sun. Granules, as well as sunspots, appear in a layer we call the Photosphere (sphere of light). Being from this same surface that emerges all the light we visually see, leaving our star, it is involved in the Chromosphere (sphere of color), which is the place where we can observe gas filaments visible on the image and solar Prominences, where Solar Flares do occur. With a diameter of 1,392,000 km, our Sun is composed of 73% Hydrogen, 25% Helium and 2% from heavier elements. The image is also featuring many prominences spread around the solar limb, in the Chromospher.
PT: A imagem revela a silhueta da Estação Espacial Internacional (ISS) atravessando o sol a uma distância de 436.29km de nós e uma velocidade média de cerca de 7.38km/s. A ISS completa uma órbita em torno da Terra a cada 90 minutos. Transportando a bordo vários astronautas, este grande satélite artificial com uma envergadura de 108,5 metros parece muito pequeno quando comparado com o disco solar com um tamanho angular de 31,5 ‘ é na verdade 29,2 vezes maior do que a ISS no momento da passagem. Difícil de observá-la mesmo com um telescópio especial equipado com filtros de protecção H-alfa, só o obturador da câmara de vídeo numa sequência de disparos rápidos tem a capacidade de captar e eternizar este momento raro que acontece num um piscar de olhos, com a curta duração de apenas 0.55 segundos, como foi visto a partir do Redondo, no Dark Sky® Alqueva, Portugal, a 6 de junho de 2021, às 13h20m11s (UT 12h20m11s). Na fotografia é possível reconhecer a estrutura da ISS com os seus painéis solares e os elementos que compõem o corpo principal. A imagem também mostra a superfície supergranulada do Sol e repleta de espículas em grande detalhe. Os grânulos assim como as manchas solares, aparecem numa camada a que chamamos a Fotosfera (esfera de luz). Sendo desta mesma superfície que emerge toda a luz que vemos sair visualmente da nossa estrela, está envolta na Cromosfera (esfera de cor), sendo o local onde podemos observar Filamentos de Gás como os que são visíveis na imagem e Protuberâncias Solares, ou Proeminências, regiões onde ocorrem as chamadas “explosões solares”. Com um diâmetro de 1.392.000 km, o nosso Sol é composto por 73% de Hidrogénio, 25% de Hélio e 2% de elementos mais pesados. A imagem captada a partir do meu terraço, revela assim uma série de intensas protuberâncias que se espalham à volta do limbo solar, na cromosfera.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI178MC | Stack of 250 frames in very good seeing conditions for the solar surface and prominences, plus the single frames where the ISS has appeared. Redondo, Dark Sky® Alqueva, Portugal. 06/06/2021 13h20m11s.
ISS Details | Detalhes da ISS:
ISS angular size: 63.33″; distance: 436.29 km
Angular separation: 0.6′; azimuth: 173.5°; altitude: 73.9°
Center line distance: In the center; visibility path width: 4.11 km
R.A.: 04h 59m; Dec: +22° 41′; parallactic angle: 5.5°
ISS velocity: 57.6 ′/s (angular); 7.31 km/s (transverse)
ISS velocity: -1.07 km/s (radial); 7.38 km/s (total);
Direction of motion relative to zenith: 57.1°
Sun angular size: 31.5′; 29.2 times larger than the ISS
Milky Way Rising Over Alqueva Lake with a Bright Meteor Visible – Photo and Time Lapse
The still image and time lapse sequence shows the Arch of Milky Way rising above Alqueva Lake, in Dark Sky® Alqueva Reserve, Portugal. While the dusty core was moving to the south until reach the meredian, a bright and fast meteor was crossing the sky above it, being visible in the upper right corner. In the foreground, the calm water of Alqueva lake works as a perfect mirror, reflecting the brightest colorful stars of the spring sky. Below is possible to enjoy the video with sound on.
PT: A imagem e sequência time lapse mostram a arco da Via Láctea erguendo-se acima do Lago Alqueva, no território Dark Sky® Alqueva, Portugal. Enquanto o núcleo empoeirado da nossa galáxia se movia para o sul em direcção ao merediano celeste, um meteoro brilhante e rápido, cruzou o céu acima deste, sendo visível no canto superior direito da imagem. Em primeiro plano, as águas calmas do Alqueva funcionam como um espelho perfeito, reflectindo as estrelas coloridas mais brilhantes do céu primaveril. Em baixo, é possível desfrutar do vídeo, com som ligado.
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Milky Way Rising above Alqueva in a Panoramic Scene
The image shows the Arch of Milky Way rising during my annual astrophotography workshop held in May. The group of busy photographers are enjoying the wonders of the sky in the Northern Hemisphere while shooting at the same time, in Dark Sky® Alqueva Reserve, Portugal. Summer Triangle, an asterism composed by the stars Vega (from Lyra constellation), Deneb (from Cygnus), and Altair (from Aquila), are visible relatively low and close to the left center of this panoramic scene. Below Deneb, a bright red emission nebula known as North America, is visible in violet hues, while in the opposite direction of the sky, the core of Milky Way galaxy is featuring many more red emission nebulae coming from deep sky objects like Lagoon, Trifid or Eagle nebula. In the foreground, the calm water of Alqueva lake works as a perfect mirror, reflecting the bright colors of the stars and the dusty center of the galaxy.
PT: A imagem mostra o Arco da Via Láctea enquanto nasce e se torna visível durante o mês de Maio, durante o meu workshop anual de astrofotografia no Alqueva. O grupo de fotógrafos atarefados por entre as luzes das câmaras e dos leds vermelhos, aprecia as maravilhas do céu acima da Reserva Dark Sky® Alqueva. O Triângulo de Verão, um asterismo composto pelas estrelas Vega (da constelação Lyra), Deneb (constelação Cygnus) e Altair (constelação Aquila), é visível relativamente baixo e próximo ao centro esquerdo desta cena panorâmica. Abaixo de Deneb, uma nebulosa de emissão vermelha brilhante conhecida como Nebulosa América do Norte, é visível em tons de violeta, enquanto na direção oposta do céu, o núcleo da Via Láctea revela muitas mais nebulosas de emissão vermelhas provenientes de objetos do céu profundo como a Lagoa, a Trífide ou Nebulosa da Águia. Em primeiro plano, as águas calmas da Grande Lago Alqueva funcionam como um espelho perfeito, reflectindo as cores brilhantes e vibrantes das estrelas e do centro empoeirado da galáxia.
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Wonders of Deep Sky Around the Galactic Center Shining above Alqueva Lake
May is the best month to start enjoying wonderful views of the Milky Way galaxy in the Northern Hemisphere. For being low and close to the horizon, is perfect for a nice framing with landscape. This panoramic shot comprises 8 single images of 1 minute exposure, tracked with the new Polarie U star tracker, taken with a 48mm lens at f2.8. The deep nightscape view captured recently above Dark Sky® Alqueva lake, shows the core of our galaxy full of known deep sky objects, like emission, reflection and dark nebulae, as well as some star clusters. The stars from Sagittarius and Scorpius constellations are shining so bright and colorful. Thanks to a fog filter used in front of the lens, it could help reveal better their colors temperatures. Below, an annotated version highlights all the summer wonders of deep sky that can be spotted in the image, as well as the galactic center.
PT: Maio é o melhor mês para começar a desfrutar das maravilhosas vistas da Via Láctea no Hemisfério Norte. Por se encontrar baixa e próxima ao horizonte, é o momento perfeito para um bom enquadramento com a paisagem. Esta foto panorâmica compreende 8 imagens únicas de 1 minuto de exposição com seguimento sideral, através da nova montagem portátil da Vixen, a Polarie U. As imagens foram captadas com uma lente de 48 mm a f2.8. Esta visão de paisagem noturna profunda, captada recentemente acima do lago Alqueva, no Dark Sky® Alqueva, mostra o núcleo da nossa galáxia repleto de objetos do céu profundo conhecidos, como nebulosas de emissão, reflexão e nebulosas escuras, bem como alguns aglomerados de estrelas. As estrelas das constelações de Sagitário e Escorpião, destacam-se assim graças ao seu brilho intenso e colorido. Para tal, foi usado um fog filter na frente da objectiva, para ajudar a destacar a temperatura de cor de cada estrela. Em baixo, uma versão anotada revela todas as maravilhas do céu mais profundo de verão que se destacam na imagem, bem como o centro galáctico da Via Láctea.
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Super Flower Full Moon of May in a Golden Moonrise
People in Australia, parts of the western US, western South America, or in South-East Asia, will enjoy tonight a Super Flower Full Moon totally eclipsed and turn a shade of red for about 14 minutes during this total lunar eclipse. Unfortunatly, we located in Europe will not be able this time to appreciate a TLE, although, the event of moonrise will be spectaular anyway, as tonight will be Super a Fullmoon. Supermoons happen when a full moon approximately coincides with the moon’s perigee, or a point in its orbit at which it is closest to Earth. The single image captured yesterday night, shows a golden moonrise above a hill full of trees in Telheiro, at Dark Sky® Alqueva, Portugal. The Full Moon of May is known as the Flower Moon to signify the flowers that bloom during this month.
PT: Na Austrália, a Oeste dos Estados Unidos e da América do Sul ou Sudeste da Ásia, irão poder apreciar esta noite, 26 de Maio de 2021, uma Super Lua Cheia, também designada de “Super Flower Moon”, totalmente eclipsada, que ficará envolta num tom avermelhado por cerca de 14 minutos durante este Eclipse Lunar Total. Infelizmente, quem estiver na Europa não poderá apreciar desta vez o Eclipse. No entanto, o nascimento da Lua será igualmente espetacular, já que hoje será uma Super Lua Cheia. As Superluas acontecem quando a lua cheia coincide aproximadamente com o perigeu da lua, ou o ponto orbital mais próximo da Terra. Esta imagem de um disparo único, captada ontem à noite, dia 25 de Maio, mostra um nascer de uma lua dourada sobre uma colina arborizada no Telheiro, nos céus do Dark Sky® Alqueva, Portugal. A Lua Cheia de Maio é conhecida como a Lua da Flor por estar associada à grande diversidade de flores que desabrocham durante esta época mês.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Planet Alqueva Under the Moonlight in a VR 360º Scene
Captured in Dark Sky® Alqueva Lake, a Little Planet and 360º Virtual Reality scene, shows the fields surrounding the lake spread by olive trees, holm oak and cork trees, with its long shadows cast by the lower angle of moonlight, while in the opposite direction of the sky, is faintly visible the arch of Milky Way rising above the Eastern horizon, yet immersed in the blueish scattered light from the moon, while interacting with our atmosphere. Summer Triangle is totally visible with blueish Vega near the top, while Ursa Major (Big Dipper) dominates the Zenith of the full dome 360º VR view. Below is available a Virtual Reality 360º scene, which you can experience in full resolution using your desktop, or smartphone with gyroscope. A great “in loco” experience can be achieved if you wear a VR glasses.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Large Solar Prominence Surrounding the Sun’s Disc
Captured on Februray 24, 2021, from Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image features a gigantic solar prominence visible around the sun´s limb at UT 14h02 (Universal Time). Due to hard conditions by that time like winds, clouds and a very unstable seeing (atmospheric stability), I couldn´t get so small scale details as I wish, although, the large scale prominence was so incredible that I had to capture it in a few videos shots, although, not enough for a time lapse which needs a long period of time with nice amtospheric conditions.
PT: Captada a 24 de Fevereiro de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível às 14h02 UT (Tempo Universal) ao redor do limbo solar. Devido às condições difíceis desse dia, com vento, nuvens passageiras e uma atmosfera muito instável (seeing), não consegui obter detalhes numa escala tão fina como gostaria. No entanto, a proeminência que apresenta detalhes numa escala média era tão incrível que tive de registá-la em alguns vídeos, embora não tenham sido suficientes para criar um time-lapse, que precisa assim de um longo período de tempo com boas condições amtosféricas.
Above – from left to right – is possible to appreciate the color portrait of a shot taken between UT 14h02 (prominence) and 14h13 (surface), and the BW version.
PT: Acima – da esquerda para a direita – é possível apreciar o retrato a cores de uma foto tirada entre as 14h02 UT (proeminências) e as 14h13 UT (superfície), e a respectiva versão a preto e branco.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI174MC | ZWO AD | Powermate 4x | Stack of 250 frames for the single image, captured in medium seeing conditions from Dark Sky® Alqueva territory, Portugal.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
ISS Lunar Transit over a Waxing Gibbous Moon
The image shows a sequence of the ISS – International Space Station – crossing the moon’s disc during the twilight over Dark Sky® Alqueva Observatory in Cumeada region, Reguengos, Portugal, on March 23, 2021 at UT 17h43m. In the background, a detailed Waxing Gibbous Moon features a surface 70% directly illuminated by the Sun and spread by contrasted craters. The path which comprises 29 frames with the ISS visible, seems to cross very close to the well known Tycho crater, with a diameter of 86km. Carrying on board astronauts, the large artificial satellite orbiting our planet with a width of 108.5 meters seems although very small when compared with the moon’s disc with an angular size of 31.2′. Indeed, the moon was 35.7 times larger than the ISS during this particular passage. Although, larger structures and the main solar panels are well possible to distinguish in the image. The angular size of the ISS was 52.42″ arc seconds at a distance of 526,67 km and a speed of 7,39km/s, it has just crossed the moon in a blink of an eye during 0.69s. International Space Station (ISS) completes an entire orbit around Earth each 90 minutes, but these events are not happening so often. To capture this scene, I´ve used a ZWO ASI178MC planetary camera in full resolution at 21 frames per second, with a telescope Takahashi FSQ-106ED + Extender-Q 1.6x (840mm) on a mount EM-200.
PT: A imagem revela uma sequência da ISS – Estação Espacial Internacional – cruzando o disco da lua Crescente Gibosa sobre o Observatório do Dark Sky® Alqueva, na Cumeada, Reguengos, Portugal, no dia 23 de Março de 2021 às 17h43m UT. Em pano de fundo, uma lua detalhada apresenta uma superfície 70% iluminada directamente pelo sol e repleta de crateras contrastantes. A linha que descreve a passagem da ISS, e que compreende 29 fotografias captadas em modo sequencial, passa próximo da conhecida cratera Tycho, com um diâmetro de 86km. Transportando a bordo astronautas em permanência, o maior satélite artificial a orbitar o nosso planeta Terra, tem uma largura de 108,5 metros, embora pareça muito pequeno quando comparado com disco lunar com um tamanho angular de 31,2′ (minutos de arco). Na verdade, a lua encontrava-se 35,7 vezes maior do que a ISS durante esta passagem em particular. Porém, as maiores estruturas e os painéis solares principais são bem possíveis de distinguir na imagem. Com o tamanho angular de 52,42″ (segundos de arco), a ISS passou a uma distância de 526,67 km e uma velocidade de 7,39 km/s, cruzando a lua num piscar de olhos, durante cerca de 0,69 segundos. A Estação Espacial Internacional (ISS) completa uma órbita inteira ao redor da Terra a cada 90 minutos, mas eventos como este não acontecem com tanta frequência. Para captar esta imagem, usei uma c^mara planetário ZWO ASI178MC na máxima resolução e a 21 frames por segundo, com um telescópio Takahashi FSQ-106ED + Extender-Q 1.6x (840mm) numa montagem EM-200.
Above is available the ISS footage captured with the ZWO ASI178MC camera and below, the portrait version of the still image which comprises all the 29 frames of the ISS sequence.
PT: Acima é possível ver o vídeo captado pela ZWO ASI178MC e abaixo, uma versão em modo retrato da imagem final que compila os 29 frames da sequência.
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Close-up View of ISS Flying Over the Sky of Alqueva
The image above is the result of a stack of 54 images of the International Space Station ISS, with a tracking of the telescope made it in manually mode (by hand) while the ISS was crossing the sky above Dark Sky® Alqueva Observatory in Portugal, on April 4, 2021, at UT19h35m. Captured during the twilight with a Meade LX200 12″ with a ZWO ASI 174MC camera, at a speed of 158 fps. The final video had more than 27.000 frames, which means that the video below is a compilation of the best 559 frames, where the ISS could be spotted somewhere in the field of view, showing the ISS after being centred and stabilised for a more appealing view without shaking and some bumps due to the hand tracking. Interesting to notice the color in the some details as well as some nice structures of the ISS. The shape of Columbus Orbital facility seems to be visible and possibly the Crew-1 Dragon docked in the Node 2. Although I don’t have sure, maybe someone with more experience in hunting the ISS could confirme. You can try by yourself in the 3D ISS model.
PT: A imagem acima é o resultado de um stack de 54 fotogramas da Estação Espacial Internacional ISS, com o seguimento do telescópio feito em modo manual (à mão) enquanto a ISS cruzava o céu acima do Observatório do Dark Sky® Alqueva, na Cumeada, em 4 de abril de 2021 às 19h35m UT. Captado durante o crepúsculo com um Meade LX200 12″ e uma câmara planetária ZWO ASI174MC a uma velocidade de 158 fps. O vídeo original registou mais de 27.000 frames, o que significa que o vídeo abaixo é uma compilação dos melhores 559 fotogramas, onde a ISS conseguiu ficar visível num dado momento dentro do campo de visão do sensor. A imagem foi assim centralizada e estabilizada para uma visão mais atraente sem saltos abruptos e solavancos devido ao seguimento manual. Interessante de notar a cor em alguns detalhes, bem como algumas estruturas visíveis como o que parece ser o módulo Columbus Orbital facility e possivelmente o Crew-1 Dragon acoplado ao Node 2 da Estação Espacial. De referir no entanto, que eu não tenho a certeza se as estruturas que se vêem são as mesmas que aqui menciono, talvez alguém com mais experiência em seguir a ISS nos céus o possa confirmar. Talvez o leitor queira tentar por si mesmo identenficiar algumas destas estruturas, com o modelo 3D da Nasa disponível aqui.
Like Flying over Plato Crater and Vallis Alpes Lunar Valley
Like if we were making an orbital flight over the moon, the image captured on March 23, 2021 from Dark Sky® Alqueva Observatory, in Cumeada village, Portugal, on a very steady night, shows in close-up a high-resolution sharp view of Plato and Vallis Alpes. Located on the northeastern shore of the Mare Imbrium, at the western extremity of the Montes Alpes mountain range. Plato is a lava-filled lunar impact crater with an age of around 3.84 billion years, featuring a 100,7km in diameter has an irregular rim with 2-km-tall jagged peaks that project prominent shadows across the crater floor when the Sun is at a low angle. Sections of the inner wall display signs of past slumping, most notably a large triangular slide along the western side. The rim of Plato is circular, but from the Earth it appears oval due to foreshortening. The flat floor of Plato has a relatively low albedo, making it appear dark in comparison to the surrounding rugged terrain. The floor is free of significant impact craters and lacks a central peak. However, there are a few small craterlets scattered across the floor. East of the crater, among the Montes Alpes, are several rilles collectively named the Rimae Plato. Near the lower left corner, is located Vallis Alpes, an incredible lunar valley featuring that bisects the Montes Alpes range. It extends 166 km from the Mare Imbrium basin. The valley is narrow at both ends and widens to a maximum width of about 10 km along the middle stretch. The valley floor is a flat, lava-flooded surface that is bisected by a slender, broken, cleft-like rille. The sides of the valley rise from the floor to the surrounding highland terrain, a blocky, irregular surface.
PT: Como se estivéssemos em pleno voo orbital sobre a lua, a imagem captada em 23 de Março de 2021 a partir do Observatório da Cumeada, no Dark Sky® Alqueva, Portugal, numa noite com a atmosfera muito estável, mostra uma visão nítida e em alta resolução da cratera Plato e Vallis Alpes. Localizada na costa nordeste do Mare Imbrium, na extremidade oeste da cordilheira dos Montes Alpes. Plato (Platão) é uma cratera de impacto lunar cheia de lava com uma idade de cerca de 3,84 mil milhões de anos, apresentando um diâmetro de 100,7 km e uma extremidadee irregular com picos recortados de 2 km de altura que projetam sombras proeminentes no chão da cratera quando o Sol está um ângulo baixo. Secções da parede interna mostram sinais de queda, no passado, principalmente uma grande marca triangular ao longo do lado oeste. O limbo de Plato é circular, mas visto da Terra parece oval devido ao efeito de compressão da perspectiva. O piso plano de Plato tem um albedo relativamente baixo, fazendo com que pareça escuro em comparação com o terreno acidentado circundante. O chão está livre de crateras de impacto significativas e não possui um pico central. No entanto, existem algumas pequenas crateras espalhadas pela superfície. A Este da cratera, entre os Montes Alpes, existem vários canais chamados coletivamente de Rimae Plato. Perto do canto esquerdo inferior, está localizado Vallis Alpes, um incrível vale lunar que divide a cordilheira dos Montes Alpes. Estende-se por 166 km desde a bacia do Mare Imbrium. O vale é estreito em ambas as extremidades e se alarga até uma largura máxima de cerca de 10 km ao longo do trecho intermédio. O fundo do vale é uma superfície plana inundada de lava que é dividida ao meio por um canal fino, quebrado e semelhante a uma fenda. Os lados do vale elevam-se do solo até o terreno montanhoso circundante, uma superfície irregular e em blocos.
Technical details | Detalhes Técnicos
Camera ASI174MC | Meade UHTC LX200 12″ GPS| Barlow 4x Televue Powermate | Sum of 200 frames for each panel. Processing on AutoStakkert 3, Registax 6 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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A lunar Scene Shows a Close-up Sharp View of Copernicus Crater
Captured on March 23, 2021 from Dark Sky® Alqueva Observatory, in Cumeada village, Portugal, on a very steady night, the close-up view shows a high-resolution sharp view of Copernicus crater. Visible slightly northwest of the center of the Moon’s Earth-facing hemisphere, Copernicus is an impact crater located on the eastern Oceanus Procellarum. With a diameter of 96,1km and a depth of 3.8 km, it may have been created by debris from the breakup of the parent body of asteroid 495 Eulalia, around 800 million years ago. The circular rim has a discernible hexagonal form, with a terraced inner wall and a 30 km wide, sloping rampart that descends nearly a kilometer to the surrounding mare. There are three distinct terraces visible, and arc-shaped landslides due to slumping of the inner wall as the crater debris subsided. Most likely due to its recent formation, the crater floor has not been flooded by lava. The terrain along the bottom is hilly in the upper part, while the other half is relatively smooth. The central peaks separated from each other by valleys, consist of three isolated mountainous rises climbing as high as 1.2 km above the floor. The crater rays spread as far as 800 kilometers across the surrounding mare, overlying rays from the craters Aristarchus and Kepler. The data on this description are based in the data of Lunar Orbiter 5, Terry W. Offield of the U.S. Geological Survey.
PT: Captada em 23 de Março de 2021 a partir do Observatório da Cumeada, no Dark Sky® Alqueva, Portugal, numa noite com a atmosfera muito estável, mostra uma visão nítida em alta resolução da cratera Copernicus. Visível ligeiramente a noroeste do centro do hemisfério da Lua que está voltado para a Terra, Copernicus é uma cratera de impacto localizada ana região Este do Oceanus Procellarum. Com um diâmetro de 96,1 km e uma profundidade de 3,8 km, pode ter sido criada por destroços do asteróide 495 Eulália, há cerca de 800 milhões de anos atrás. As paredes externas circulares têm uma forma hexagonal perceptível, com uma parede interna em forma de terraço e uma muralha inclinada de 30 km de largura que desce quase um quilômetro até o mar circundante. Existem três terraços distintos visíveis e deslizamentos de terra em forma de arco devido à queda da parede interna à medida que os detritos da cratera diminuíram. Muito provavelmente, devido à sua formação recente, o fundo da cratera não foi inundado por lava. O terreno ao longo do fundo é acidentado na parte superior, enquanto a outra metade é relativamente plana. Os picos centrais separados uns dos outros por vales, consistem em três elevações montanhosas isoladas que chegam a 1,2 km acima do solo. Os raios de impacto da cratera estenderam-se até 800 quilômetros ao redor do mar, sobrepondo-se aos raios das crateras Aristarchus e Kepler. Os dados utlizados na pormenorização desta cratera baseiam-se nos dados do Lunar Orbiter 5, e na descrição detalhada do Terry W. Offield do U.S. Geological Survey.
Technical details | Detalhes Técnicos
Camera ASI174MC | Meade UHTC LX200 12″ GPS| Barlow 4x Televue Powermate | Sum of 200 frames for each panel. Processing on AutoStakkert 3, Registax 6 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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Clavius and Moretus in a Sharp Lunarscape Scene
Like if we were making an orbital flight over the moon, the image captured on March 23, 2021 from Dark Sky® Alqueva Observatory, in Cumeada village, Portugal, on a very steady night, shows a high-resolution sharp view of Clavius along with Moretus craters framed in the same scene. Being Clavius one of the largest and older formations on the lunar surface, features a diameter of 230.8Km and a Depth of 3.5 km, and it was formed during the Nectarian period. The convex plain floor was flooded with lava at about 4 billion years ago, it has a low outer wall comparing to its size, marked by some small and large crater impacts, like the detailed Rutherfurd visible in the upper part of the crater wall with a diameter of 47,4km and depth of 2,5km, as well as Porter – lower part of the crater wall near the lower egde of the image – with 51,3km in diameter. Last October 2020, NASA has announced and confirmed the existence of a molecular water near Clavius. But this lunarscape scene also shows another very interesting crater, Moretus – upper right corner – with a diameter of 114km. Due to the location near the lunar limb, the crater appears oblong because of foreshortening. The rim of the crater has a wide, terraced inner wall, and a complex outer rampart. The floor has been partly resurfaced and is relatively flat. In the middle is a central mountain formation that rises about 2.1 kilometers above the surrounding floor.
PT: Como se estivéssemos em pleno voo orbital sobre a lua, esta imagem captada a 23 de Março de 2021 a partir do Observatório da Cumeada, no Dark Sky® Alqueva, Portugal, numa noite com a atmosfera muito estável, mostra uma visão nítida em alta resolução da cratera Clavius juntamente com a cratera Moretus enquadradas na mesma cena. Sendo Clavius uma das maiores e mais antigas formações na superfície lunar, apresentando um diâmetro de 230,8 km e uma profundidade de 3,5 km, foi formada durante o período Nectárico, na escala do período geológico lunar. O chão plano e convexo foi inundado com lava há cerca de 4 mil milhões de anos atrás, revelando uma parede externa baixa comparada com o seu tamanho total, marcada por alguns impactos que formaram pequenas e grandes crateras, como a detalhada Rutherfurd visível na parte superior da parede da cratera com um diâmetro de 47,4km e uma profundidade de 2,5km, assim como a Porter – visível na parte inferior da parede da cratera, próxima à parte inferior da imagem – com 51,3km de diâmetro. Em outubro de 2020, a NASA anunciou e confirmou a existência de uma molécula de águra perto de Clavius. Mas esta paisagem lunar também mostra outra cratera muito interessante, Moretus, com um diâmetro de 114 km. Devido à localização próxima ao limbo lunar, a cratera parece oblonga devido à perspectiva. O extremo da cratera tem uma parede interna ampla e em terraço, assim como uma muralha externa complexa. O piso foi parcialmente recapeado e é relativamente plano. No meio está uma formação montanhosa central que se eleva a cerca de 2,1 quilémetros acima do solo circundante.
Technical details | Detalhes Técnicos
Camera ASI174MC | Meade UHTC LX200 12″ GPS| Barlow 4x Televue Powermate | Sum of 200 frames for each panel. Processing on AutoStakkert 3, Registax 6 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Orion Nebula Immersed in the Reddish Emission from Hydrogen Gas
A deep wide field view shows Orion Nebula M42, immersed in the reddish emission from the light of hydrogen gas excited by energetic newly-formed hot and young stars. Blue-violet coloration, comes from the reflected radiation from the massive O-class stars. This complex contains dark nebulae, emission nebulae, reflection nebulae, and H II regions. The Orion Nebula (M42) is a diffuse and large nebula complex situated in the Milky Way, being south of Orion’s Belt in the constellation of Orion, is one of the brightest and beautiful nebulae also visible to naked eye in the night sky. M42 is located at a distance of about 1350 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. It has a mass of about 2000 times the mass of the Sun. This nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula. Below, in the lower left corner, is partially visible the red cloud where is located the well known Horse-head nebula. But besides this colorful field captured from Cumeada Observatory, official headquarter of Dark Sky® Alqueva Reserve, Portugal, a nice faint galaxy and another less bright, can both be visible in the upper right corner of the image.
PT: Uma visão ampla e profunda mostra a nebulosa de Orion M42, imersa numa tonalidade avermelhada, resultado de uma emissão brilhante a partir do gás de hidrogénio excitado por estrelas quentes e energéticas, recém-formadas. A coloração azul-violeta visível na fotografia, provém da radiação refletida das estrelas da classe-O. Este complexo contém nebulosas escuras, nebulosas de emissão, nebulosas de reflexão e regiões H II. A Nebulosa de Orion (M42) é um grande complexo nebuloso difuso situado na Via Láctea, a sul do Cinturão de Orion na constelação de Orion, sendo também uma das mais brilhantes e fascinantes nebulosas visíveis a olho nu no céu noturno. M42 está localizado a uma distância de cerca de 1350 anos-luz e é a região mais próxima da Terra na formação de estrelas maciças. A nebulosa M42 está estimada em 24 anos-luz de diâmetro. Tem uma massa de cerca de 2000 vezes a massa do Sol. O estudo desta nebulosa já permitiu revelar muito sobre o processo de como as estrelas e os sistemas planetários são formados por nuvens de gás e poeira em colapso. Os astrónomos observaram directamente discos protoplanetários, anãs castanhas, movimentos intensos e turbulentos de gás e os efeitos foto-ionizantes de estrelas maciças próximas, na nebulosa.
Above from left to right, a close-up view showing the sharp details on small structures of M42. And a close-up view showing two faint galaxies in the right edge. Below, is a starless image of Orion field in Ha (black and white view), showing the intricate and refined delicacy from the clouds of hydrogen gas.
PT: Acima, da esquerda para a direita, uma visão ampliada revela os detalhes nítidos em pequenas estruturas da nebulosa M42 e NGC1977. A seguir, uma visão de perto mostra duas galáxias ténues visíveis no extremo direito da imagem. Abaixo, é possível ver uma imagem (sem estrelas) do campo de Orion em Ha (a preto e branco), mostrando a delicadeza intrincada e refinada das nuvens de gás de hidrogénio.
Technical details | Detalhes Técnicos
Taka FSQ-106ED + QE-Reducer (f/3,6) – EM200 auto-guided | Nikon D810a modified | ISO800 – Sub Exp. 150 sec. + multiple shorter exposures | | ISO3200 – Sub Exp. 8 minutes with Ha 7nm filter | Total integration of 276 min/4,6h (106 minutes in RGB + 170 minutes in Ha). Processing on PixInsight 1.8.8-7 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz..
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
An UFO Light Painting Against the Sky of Alqueva lake
While some friends were playing with a drone and making light paintings during one of my private workshops under the starry skies of Dark Sky® Alqueva, I had the chance to take this UFO picture. Indeed, many people asked me if I already saw anything strange or “unidentified flying object (UFO)” in the sky… well, what can I say is that…over the last 25 years I have spent hundreds and hundreds of hours looking up at the sky and shooting in different countries around the world and I never saw something that science could not explain.
PT: Enquanto alguns amigos testavam um drone fazendo pinturas de luz durante um dos meus workshops privados sob o céu estrelado de Dark Sky® Alqueva, eu tive a chance de tirar esta foto em estilo UFO. Na verdade, muitas pessoas já me perguntaram se eu alguma vez vi algo estranho ou um objeto voador não identificado (OVNI) no céu. Bem, o que eu posso dizer é que…nos últimos 25 anos, passei centenas e centenas de horas olhando para o céu e filmando em diferentes países ao redor do mundo e nunca vi algo que a ciência não pudesse explicar.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
The Entrance of Ansiães Castle with Sirius and Orion in a Deep Nightscape Scene – Phot and Time Lapse
Captured in the entrance of Ansiães Castle, the still image features the result of multiple exposures to help reveal a deep nightscape scene where is possible to enjoy besides the bluish star Siriuis and the main colorful stars of Orion constellation, deepsky objects shinning in reddish/violets hues like Barnards loop, Orion nebula, Horse Head nebula, Rosette nebula, and Lambda Orionis. Below is also possible to enjoy a time lapse video showing the shadow shape from the entrance of Ansiães Castle, located in Dark Sky Vale do Tua, northern Portugal, acting as a frame while in the background stars from winter constellations like Orion are shining in different colors due to their temperatures, the scene highlights the bluish brightest hot star in the celestial sphere, Sirius, moving behind the foreground tree. But the busy sky also feature another interesting object, even looking strange at first sight, it’s not an UFO event, but a spinning satellite which took several minutes to cross the entire field of view. Nowadays we are starting to face a huge problem, the growing presence of satellites surrounding our Planet, which will turn into space junk in a near future. Many scientists and astronomers are worried with this problem and the announcements of Elon Musk to launch thousands of new satellites, for sure, it has to be faced as a new kind of Earth/Space pollution. Enjoy with sound on.
PT: Captada na entrada do Castelo de Ansiães, a imagem estática apresenta o resultado de múltiplas exposições para ajudar a revelar um cenário nocturno profundo onde é possível apreciar para além da estrela azulada Sirius e das principais estrelas da constelação de Orion, objectos de céu profundo brilhando numa tonalidade vermelho/violeta como Barnards loop, a nebulosa de Orion, nebulosa Cabeça do Cavalo, nebulosa Roseta e Lambda Orionis. Em baixo é também possível desfrutar de um vídeo time lapse que mostra a silhueta escura da entrada do Castelo de Ansiães, localizado no Dark Sky® Vale do Tua, no norte de Portugal, a funcionar como moldura enquanto ao fundo as estrelas de constelações de inverno como Orion, brilham com diferente cores devido às suas temperaturas. Esta cena nocturna destaca ainda a estrela quente azulada mais brilhante da esfera celeste, Sirius, movendo-se atrás da árvore em primeiro plano. Mas este céu revela ainda outro objeto interessante, mesmo parecendo estranho à primeira vista, não é um evento OVNI, mas um satélite giratório que levou vários minutos para cruzar todo o campo de visão. Hoje em dia enfrentamos um grande problema, a crescente presença de satélites em torno de nosso planeta, que se transformarão em lixo espacial em um futuro próximo. Muitos cientistas e astrónomos de todo o mundo estão seriamente preocupados com este problema e os anúncios de Elon Musk que prevêm o lançamento de milhares de novos satélites. Este é um problema que terá de ser encarado como um novo tipo de poluição na Terra / Espaço.
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Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Dragged Sun – Gigantic Solar Prominence in a Stacked Motion – Color vs BW
Captured on March 17, 2021, from Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image shows a gigantic solar prominence. Seen in Color and Black and White version, the image feature a stacked scene comprising 2h55 minutes of solar motion with dragged prominences visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). The sequence of close-up captures were taken between UT 12h02 and UT 14h57 (Universal Time) to help reveal very interesting changes in shape, intensity and detail, with spicules and supergranulation in motion on the sun´s surface, as well as spicules and minor prominences appearing around the limb´s disc. The still single images and time lapse video also highlights a spectacular fast eruptive prominence visible in the upper right edge, click here.
PT: Captada a 17 de Março de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução revela uma gigantesca promeminência solar. Apresentada numa versão a cores e a preto e branco, a imagem é o resultado de um stack que compreende 2h55 minutos de movimento solar com o arrastamento das protuberâncias, vistas em grande detalhe ao redor do limbo solar, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). A sequência de captações em close-up foi feita entre UT 12h02 e UT 14h57 (Tempo Universal), para assim permitir revelar mudanças muito interessantes na forma, intensidade e detalhe, com espículas e supergranulação em movimento na superfície solar, bem como espículas e pequenas proeminências aparecendo ao redor do limbo. As imagens singulares estáticas e o vídeo time lapse também destacam uma espetacular e proeminência eruptiva em forma de lagarta que faz um movimento rápido visível no extremo superior direito, clique aqui.
Below – from right to left – is possible to appreciate a portrait of a singular shot taken at UT 12h45, and the BW and Color version of a stacked sequence comprising 2h55 minutes of solar motion with dragged prominences.
PT: Em baixo – da direita para a esquerda, é possível apreciar uma versão estática de uma imagem singular em modo retrato, captada às 12h45 (UT) e uma imagem a preto e branco e a cores, resultado de um stack em sequência que compreende 2h55 minutos de movimento solar com o arrastamento das protuberâncias.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI174MC | ZWO AD | Powermate 4x | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
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Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Gigantic Solar Prominence in Motion – Photo & Time Lapse
Captured on March 17, 2021, from Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution footage features a gigantic solar prominence visible in great detail around the sun´s limb due to an exceptional seeing conditions. The time lapse sequence of close-up captures were taken between UT 12h02 and UT 14h57 (Universal Time) to help reveal very interesting changes in shape, intensity and detail, with spicules and supergranulation in motion on the sun´s surface. The video also highlights in slow motion a spectacular fast eruptive prominence visible in the upper right edge.
PT: Captada a 17 de Março de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível em grande detalhe ao redor do limbo do sol, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). A sequência de captações em close-up foi feita entre UT 12h02 e UT 14h57 (Tempo Universal), para assim permitir revelar mudanças muito interessantes na forma, intensidade e detalhe, com espículas e supergranulação em movimento na superfície solar, bem como espículas e pequenas proeminências aparecendo ao redor do limbo. O vídeo também destaca em slow motion uma espetacular e rápida proeminência eruptiva visível no extremo superior direito.
Above – from left to right – is possible to appreciate a singular portrait of a still shot taken at UT 12h45, and the BW and Color version of a stacked image comprising a sequence of 2h55 minutes of solar motion with dragged prominences. To help reveal the prominence flames in motion, I made a time lapse compiling 162 shots processed, each one as result of a stack of the best 250 frames from each raw video. The final result is a 2K high resolution time lapse movie comprising 2h55 of images. Due to vimeo algorithms it may shows a little compression, which is not visible in the .mov master file.
PT: Acima – da esquerda para a direita, é possível apreciar uma versão singular estática em modo retrato, captada às 12h45 (UT) e uma imagem a preto e branco e a cores, de um stack em sequência que compreende 2h55 minutos de movimento solar com o arrastamento das protuberâncias. Para ajudar a revelar as chamas da proeminência em movimento, fiz um time lapse compilando 162 captações processadas, cada uma como resultado de um stack dos melhores 250 frames de cada vídeo raw. O resultado final é um filme time lapse de alta resolução de 2K que compila 2h55 de imagens. Devido aos algoritmos do vimeo, o video poderá mostrar alguma compressão, que não é visível no ficheiro master original .mov. Não se esqueça de colocar o som ligado.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI174MC | ZWO AD | Powermate 4x | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
BUY THIS PRINT | COMPRAR ESTA IMPRESSÃO
Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Mars Immersed in the Faintest dust of Pleiades Star Cluster
A wide field deep view of the winter sky comprising 5h of expousure captured with a 300mm lens at f/2.8, shows planet Mars visiting the faintest (IFN) nebulosity which seems to surround Pleiades or Seven Sisters (M45), an open cluster containing hot and young stars. The blue nebulosity that surrounds the cluster, is a reflection nebula scattering the blue starlight. The cluster contains about 1,000 stars, of which more than a dozen can be seen with the unaided eye during winter time in the Northern Hemisphere. Captured from Cumeada Observatory, official headquarter of Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
PT: Uma visão ampla e profunda do céu de inverno que acumula 5h de exposição captadas com uma lente de 300 mm a f/2.8, revela o planeta Marte visitando a nebulosidade mais tênue (IFN) que parece circundar as Pleiades ou Sete Irmãs (M45), um aglomerado de estrelas aberto contendo estrelas muito jovens e quentes. A nebulosidade azul que envolve o aglomerado é uma nebulosa de reflexão, que espalha assim a luz azul das estrelas que se encontram na região. O aglomerado contém cerca de 1.000 estrelas, das quais uma dezena pode ser apreciada a olho nu durante o inverno no Hemisfério Norte. Captada a partir do Observatório da Cumeada, Sede Oficial do Dark Sky@ Alqueva, Reguengos de Monsaraz, Portugal.
Technical details | Detalhes Técnicos
Canon 300mm f/2,8 + Canon 6D not modified | ISO1600 and ISO2000 – Exp. of 1, 2 and 3 minutes for each set captured in 3 different nights of March 2021. Total of 179 lights | Mount EQ6 Pro |Total integration of 179 Lights: 295 minutes (5h). Processing on PixInsight 1.8.8-7 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Dragged Sun – Large Solar Prominence and a Swirling Eruptive Flame in a Stacked Motion – Color vs BW
Captured on Jan 17, 2021, from Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image shows a gigantic solar prominence. Seen in Color and Black and White version, the image feature a stacked scene comprising 1h30 minutes of solar motion with dragged prominences visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). The sequence of close-up captures were taken between UT 12h56 and UT 14h24 (Universal Time) to help reveal very interesting changes in shape, intensity and detail, with spicules and supergranulation in motion on the sun´s surface, as well as spicules and minor eruptive prominences appearing around the limb´s disc. The still single images and time lapse video also highlights a spectacular fast swirling eruptive prominence visible in the upper right edge, while not faraway, a nice plume of fire was flown up and vanished as a smoke ring. To enjoy the time lapse and still photos of this dragged version, click here.
PT: Captada a 17 de Janeiro de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução revela uma gigantesca promeminência solar. Apresentada numa versão a cores e a preto e branco, a imagem é o resultado de um stack que compreende 1h30 minutos de movimento solar com o arrastamento das protuberâncias, vistas em grande detalhe ao redor do limbo solar, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). A sequência de captações em close-up foi feita entre UT 12h56 e UT 14h24 (Tempo Universal), para assim permitir revelar mudanças muito interessantes na forma, intensidade e detalhe, com espículas e supergranulação em movimento na superfície solar, bem como espículas e pequenas proeminências eruptivas aparecendo ao redor do limbo. As imagens singulares estáticas e o vídeo time lapse também destacam uma espetacular proeminência eruptiva em forma de espiral e que faz um redemoinho rápido visível no extremo superior direito, não muito distante, é ainda possível ver uma pluma de fogo erguer-se e desvanecer como um “anel de fumo”. Para desfrutar do vídeo time lapse e das imagens estáticas resultantes desta versão arrastada, clique aqui.
Below – from right to left – is possible to appreciate a portrait of a singular shot taken at UT 13h07, and the BW and Color version of a stacked sequence comprising 1h30 minutes of solar motion with dragged prominences.
PT: Em baixo – da direita para a esquerda, é possível apreciar uma versão estática de uma imagem singular em modo retrato, captada às 13h07 (UT) e uma imagem a preto e branco e a cores, resultado de um stack em sequência que compreende 1h30 minutos de movimento solar com o arrastamento das protuberâncias.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI174MC | ZWO AD | Powermate 4x | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
BUY THIS PRINT | COMPRAR ESTA IMPRESSÃO
Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Large Solar Prominence and a Swirling Eruptive Flame in Motion – Photo & Time Lapse
Captured on Jan 17, 2021, from Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image features a gigantic solar prominence visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). The time lapse sequence of close-up captures were taken between UT 12h56 and UT 14h24 (Universal Time) to help reveal very interesting changes in shape, intensity and detail, with spicules and supergranulation in motion on the sun´s surface, as well as spicules and minor eruptive prominences appearing around the limb´s disc. The video also highlights in slow motion a spectacular fast swirling eruptive prominence visible in the upper right edge, while not faraway, a nice plume of fire was flown up and vanished as a smoke ring.
PT: Captada a 17 de Janeiro de 2021, a partir da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível em grande detalhe ao redor do limbo do sol, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). A sequência de captações em close-up foi feita entre UT 12h56 e UT 14h24 (Tempo Universal), para assim permitir revelar mudanças muito interessantes na forma, intensidade e detalhe, com espículas e supergranulação em movimento na superfície solar, bem como espículas e pequenas proeminências eruptivas aparecendo ao redor do limbo. O vídeo também destaca em slow motion uma espetacular proeminência eruptiva em forma de espiral e que faz um redemoinho rápido visível no extremo superior direito, não muito distante, é ainda possível ver uma pluma de fogo erguer-se e desvanecer como um “anel de fumo”.
Above – from left to right – is possible to appreciate a singular portrait of a still shot taken at UT 13h07, and the BW and Color version of a stacked image comprising a sequence of 1h30 minutes of solar motion with dragged prominences. To help reveal the prominence flames in motion, I made a time lapse compiling 105 shots processed, each one as result of a stack of the best 250 frames from each raw video. The final result is a 2K high resolution time lapse movie comprising 1h30 of images. Due to vimeo algorithms it may shows a little compression, which is not visible in the .mov master file..
PT: Acima – da esquerda para a direita, é possível apreciar uma versão singular estática em modo retrato, captada às 13h07 (UT) e uma imagem a preto e branco e a cores, de um stack em sequência que compreende 1h30 minutos de movimento solar com o arrastamento das protuberâncias. Para ajudar a revelar as chamas da proeminência em movimento, fiz um time lapse compilando 105 captações processadas, cada uma como resultado de um stack dos melhores 250 frames de cada vídeo raw. O resultado final é um filme time lapse de alta resolução de 2K que compila 1h30 de imagens. Devido aos algoritmos do vimeo, o video poderá mostrar alguma compressão, que não é visível no ficheiro master original .mov. Não se esqueça de colocar o som ligado.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI174MC | ZWO AD | Powermate 4x | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
BUY THIS PRINT | COMPRAR ESTA IMPRESSÃO
Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
A Cosmic Angel in Space
Located in the constellation of Monoceros (Unicorn), the image shows the dusty brown-reddened field which seems to surround a central colorful cosmic Angel, also known as NGC 2170. The Angel Nebula is featuring a red emission nebulae along the pink skirt crossed by a dark belt of absorption nebulae, while the wings of the angel are just reflecting the light of nearby hot stars, forming a bluish reflection nebulae. Along the end of this angelic cosmic dress, adorning the seam of the pink skirt, we can find a beautiful small cluster of colorful diffuse stars adding a final touch of glamour to this celestial portrait, which comprise a total amount of 18 hours of exposure, captured from Cumeada Observatory, official headquarter of Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
PT: Localizada na constelação de Monoceros (Unicórnio), a imagem revela o campo poeirento castanho avermelhado que parece circundar um colorido Anjo cósmico ao centro, também conhecido como NGC 2170. A Nebulosa do Anjo apresenta uma nebulosa de emissão vermelha ao longo da “saia rosa-violeta” atravessada por um cinturão escuro de nebulosas de absorção, enquanto as asas do anjo estão apenas a reflectir a luz de estrelas quentes situadas nas proximidades, formando assim uma nebulosa de reflexão azulada. Ao longo deste vestido cósmico angelical, adornando a costura da saia rosa-violeta, podemos encontrar um lindo e pequeno aglomerado de estrelas difusas coloridas que acresentam um toque final de glamour a este retrato celestial, que condensa um total de 18 horas de exposição captadas a partir do Observatório da Cumeada, Sede Oficial do Dark Sky@ Alqueva, Reguengos de Monsaraz, Portugal.
Technical details | Detalhes Técnicos
Taka FSQ-106ED + Extender-Q 1.6x – EM200 auto-guided | Nikon D810a with Crop 1,5x | ISO2500 – Exp. 300 seconds x 216 lights | Total integration of 216 Lights: 1080 minutes = 18 hours. A comparison (Before & After) between the single exposure and stacked result is available here. Processing on PixInsight 1.8.8-7 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.
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Galactic Arm and Greenish Air Glow above Steppe Golden Fields of Mértola – All Sky and VR 360º Scene
Captured on a steppe field from the wonderful region of Mértola in Dark Sky® Alqueva, an all sky and 360º Virtual Reality scene, features the arch of Milky Way shining high in the Sky. Summer Triangle highlights the center of the image, with blueish Vega near the top. At the upper half right side – in the beginning of the Milky Way – a bright elliptic and diffuse dot is the light coming from Andromeda Galaxy. The greenish horizon is surrounded and involved in airglow and some thin high clouds. Located at one o´clock shines an orange dot, it’s not a star, but the close planet Mars in opposition. In the opposite horizon of this large circular field – left upper edge of the all sky scene – lies planets Saturn and Jupiter against the dusty core of our Milky Way Galaxy. Below is available a Virtual Reality 360º image, which you can experience in full resolution using your desktop, or smartphone with gyroscope. A great “in loco” experience can be achieved if you wear a VR glasses.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
A Medieval Cosmic Portal With Straight Access to the Summer Triangle
Using some “sci fi” imagination, this vertical mosaic of single images shows what could be the entrance of a cosmic portal, with straight access to the Summer Triangle. The image shows the stairs of Noudar Castle tower, a medieval fortress located between the Múrtega and the Ardila rivers, in Barrancos, most eastern part from Dark Sky® Alqueva territory, Portugal. Its construction was finished in 1307, during the reign of Don Dinis. The place was chosen because of its natural defences, easy access and the closeness of a water spring of excellent quality. This fortress was very important for border defence against the kingdom of Castile during the early 14th Century. Above the tower walls, lies a well known asterism called Summer Triangle and shinning against the magnificent dusty path of our Milky Way galaxy. At centres top, a pink/red emission from North America Nebula (NGC7000) glows near Deneb star (from Cygnus constellation). Below and near the right edge, shines the bluish star Vega, (from Lyra constellation) which is forming a perfect triangle with star Altair (from Aquila constellation), visible very close to the top tower.
PT: Usando um pouco da imaginação “sci fi”, este mosaico vertical de single frames mostra o que poderia ser a entrada de um portal cósmico, com acesso directo ao Triângulo de Verão. A imagem revela a escadaria da torre do Castelo de Noudar, uma construção medieval situada entre os rios Múrtega e Ardila, em Barrancos, na parte nordeste do território Dark Sky® Alqueva, Portugal. A sua construção terminou em 1307, durante o reinado de D. Dinis. O local foi escolhido devido às suas defesas naturais, fácil acesso e proximidade de uma nascente de água de excelente qualidade. Esta fortaleza medieval foi muito importante para a defesa da fronteira contra o reino de Castela no início do século XIV. Acima das muralhas da torre, encontra-se um asterismo conhecido como Triângulo de Verão, brilhando contra a magnífica presença da nossa galáxia, a Via Láctea. No topo central, é visível uma emissão rosa-avermelhada pertencente à Nebulosa da América do Norte (NGC7000) que brilha perto da estrela Deneb (constelação do Cisne). Abaixo e próxima à lateral direita, brilha a estrela azulada Vega, (da constelação Lira) que forma assim um triângulo perfeito com a estrela Altair (da constelação da Águia), visível ao centro e muito perto do topo da torre.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Solar Chromosphere Featuring a Large Prominence 6,5 Times Larger than Earth
Captured on May 25, 2020, from my backyard near Dark Sky® Alqueva region, Portugal, around noon with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image features a gigantic solar prominence visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). As in average the solar disc has a diameter of 1,391,000 km, we can determine that the large prominence could reach around 83,000 km high, which means 6,5 times larger than our planet Earth with a diameter of 12,742 km. The image also shows spicules and supergranulation in the surface of the Sun. Granules, as well as sunspots, appear in a layer we call the Photosphere (sphere of light). Being from this same surface that emerges all the light we visually see, leaving our star, it is involved in the Chromosphere (sphere of color), which is the place where we can observe solar Prominences, where Solar Flares do occur. Our Sun is composed of 73% Hydrogen, 25% Helium and 2% from heavier elements. The image is also featuring other smaller prominences spread around the solar limb, in the Chromospher. To see the full report sequence with close-up shots of the large prominence, and time laspe video, click here.
PT: Captada em 25 de maio de 2020, a partir do meu terraço perto da região do Dark Sky® Alqueva, Portugal, por volta das 12h00 com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível em grande detalhe ao redor do limbo do sol, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). Como em média o disco solar tem um diâmetro de cerca de 1.391.000 km, podemos determinar que esta proeminência é de facto gigante podendo atingir cerca de 83.000 km de altura, o que significa 6,5 vezes maior que o nosso próprio planeta Terra com um diâmetro de 12.742 km. A imagem também mostra a superfície supergranulada do Sol e repleta de espículas. Os grânulos assim como as manchas solares, aparecem numa camada a que chamamos a Fotosfera (esfera de luz). Sendo desta mesma superfície que emerge toda a luz que vemos sair visualmente da nossa estrela, está envolta na Cromosfera (esfera de cor), sendo o local onde podemos observar Filamentos de Gás e Protuberâncias Solares, ou Proeminências, regiões onde ocorrem as chamadas “explosões solares”. O nosso Sol é composto por 73% de Hidrogénio, 25% de Hélio e 2% de elementos mais pesados. A imagem revela ainda outras pequenas protuberâncias que se espalham à volta do limbo solar, na cromosfera. Para ver o report completo com imagens em close-up da grande proeminência visível nesta fotografia e uma sequência vídeo em time lapse, clique aqui.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI178MC | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Portrait of a Great Solar Prominence
Captured on May 25, 2020, from my backyard near Dark Sky® Alqueva region, Portugal, around UT 14:42 with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image features a gigantic solar prominence visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). As in average the solar disc has a diameter of 1,391,000 km, we can determine that the large prominence could reach around 83,000 km high, which means 6,5 times larger than our planet Earth with a diameter of 12,742 km. To see the full report sequence, with full disc image and time laspe video, click here.
PT: Captada em 25 de maio de 2020, a partir do meu terraço perto da região do Dark Sky® Alqueva, Portugal, às 14:42 (UT) com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível em grande detalhe ao redor do limbo do sol, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). Como em média o disco solar tem um diâmetro de cerca de 1.391.000 km, podemos determinar que esta proeminência é de facto gigante podendo atingir cerca de 83.000 km de altura, o que significa 6,5 vezes maior que o nosso próprio planeta Terra com um diâmetro de 12.742 km. Para ver o report completo, com o disco solar integral e uma sequência vídeo em time lapse, clique aqui.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI178MC | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
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Buy a Fine Art Print or Wall Decor of this Image – Make your order Now!
You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
High Resolution Image and Video Shows a Gigantic Solar Prominence in Motion
Captured on May 25, 2020, from my backyard near Dark Sky® Alqueva region, Portugal, with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha, the high-resolution image features a gigantic solar prominence visible in great detail around the sun´s limb due to an exceptional seeing conditions (very good atmospheric stability). The sequence of close-up captures were taken between UT 13h41 and UT 16h00 (Universal Time) when the seeing was more stable to help reveal very interesting changes in shape, intensity and detail, with minor eruptive prominences appearing around the limb. The full disc image, captured around noon, also shows the large prominence visible at the right northern edge of the Sun. As in average the solar disc has a diameter of 1,391,000 km, we can determine that the large prominence could reach around 83,000 km high, which means 6,5 times larger than our planet Earth with a diameter of 12,742 km. To see a comparison with NASA images taken by SDO – Solar Dynamics Observatory, at approximately the same time and date, take a look here.
PT: Captada em 25 de maio de 2020, a partir do meu terraço perto da região do Dark Sky® Alqueva, Portugal, com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa, a imagem de alta resolução apresenta uma gigantesca promeminência solar visível em grande detalhe ao redor do limbo do sol, graças a condições de seeing excepcionais (excelente estabilidade atmosférica). A sequência de captações em close-up foi feita entre UT 13h41 e UT 16h00 (Tempo Universal), nos momentos de maior estabilidade astmosférica, para assim permitir revelar mudanças muito interessantes na forma, intensidade e detalhe da grande protuberância, assim como das pequenas proeminências eruptivas que aparecem e desaparecem rapidamente ao redor do limbo. A imagem completa do disco, captada por volta do meio-dia, também mostra a grande proeminência visível no contorno direito norte do sol. Como em média o disco solar tem um diâmetro de cerca de 1.391.000 km, podemos determinar que esta proeminência é de facto gigante podendo atingir cerca de 83.000 km de altura, o que significa 6,5 vezes maior que o nosso próprio planeta Terra com um diâmetro de 12.742 km. Para ver uma comparação com as imagens da NASA obtidas pelo SDO – Solar Dynamics Observatory, aproximadamente à mesma data e hora, clique aqui.
To help reveal the prominence flames in motion, I made a time lapse compiling 27 shots processed, each one as result of a stack of the best 250 frames from each raw video. The final result is a 2K high resolution time lapse movie from the images captured between UT 13h41 and UT 16h00. Due to vimeo algorithms it may shows a little compression, which is not visible in the .mov master file. Don´t forget to put to sound on.
PT: Para ajudar a revelar as chamas da proeminência em movimento, fiz um time lapse compilando 27 captações processadas, cada uma como resultado de um stack dos melhores 250 frames de cada vídeo raw. O resultado final é um filme time lapse de alta resolução de 2K a partir das imagens captadas entre UT 13h41 e UT 16h00. Devido aos algoritmos do vimeo, o video poderá mostrar alguma compressão, que não é visível no ficheiro master original .mov. Não se esqueça de colocar o som ligado.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI178MC | Stack of 250 frames for each single image, captured in very good seeing conditions (average of 1″ arcs) from Dark Sky® Alqueva territory, Portugal.
Andromeda Shines above a Steppe Field from Dark Sky® Alqueva in Mértola
Captured on a flat steppe field from the wonderful region of Mértola in Dark Sky® Alqueva, the image features a wide vertical panorama with the Milky Way in the background, while in the top edge, is featured a diffuse light shape from Andromeda Galaxy.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Dark Sky® Alqueva – A Stargazing Experience of a Lifetime – Video
Video timelapse about Dark Sky® Alqueva stargazing experience while enjoy being and working under the stars, released for the ceremony of WORLD TRAVEL AWARDS 2020. Dark Sky® Alqueva was awarded as: Europe’s Responsible Tourism Award 2020 and Europe’s Leading Tourism Development Project 2020 plus World’s Leading Tourism Project 2020.
PT: Vídeo time lapse sobre a experiência de observação no Dark Sky® Alqueva e a magia de estar sob um céu estrelado ímpar, lançado para a cerimónia dos WORLD TRAVEL AWARDS 2020 onde o Dark Sky® Alqueva foi premiado como: Europe’s Responsible Tourism Award 2020 e Europe’s Leading Tourism Development Project 2020 e World’s Leading Tourism Project 2020.
Astrophotography Workshop Under the Moonlight in Dark Sky® Alqueva Mértola
Captured during one of my workshops in Mértola, @darkskyalqueva, this short time lapse sequence shows the Milky Way rising while the moon is yet illuminating the background sky before setting in the opposite direction. To know more about my workshops, click here.
PT: Captada durante um dos meus workshops no território do Dark Sky® Alqueva, em Mértola, esta curta sequência de lapso de tempo mostra a Via Láctea nascendo enquanto a lua ainda está iluminando o céu de fundo antes de se pôr na direção oposta do céu. Para saber mais acerca do meus workshops, clique aqui.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Comet Neowise Against the Twilight Sky of Alqueva Lake
The image shows Comet Neowise C/2020 F3 with his tail faintly visible against the twilight sky during the predawn of 12th July, above Alqueva lake, in Monte Juntos, territory of Dark Sky® Alqueva, in Alentejo, Portugal. The comet has become so bright that can be seen with unaided eye, although, it starts to be visible from now on after the sunset and during the nautical twilight. Is always preferable to enjoy the view with a pair of binoculars or a telephoto lens. Below is a time lapse sequence taken in the same night but with a different setup.
PT: A imagem revela o cometa Neowise C/2020 F3 com a sua cauda ténue contra o céu crepuscular captada durante a madrugada de 12 de julho, acima do lago Alqueva, em Monte Juntos, território do Dark Sky® Alqueva, no Alentejo, Portugal. O cometa ficou tão brilhante que pode ser visto a olho nu, embora comece a ser visível a partir de agora após o pôr do sol e durante o crepúsculo naútico. É sempre preferível apreciar a vista com um par de binóculos ou lentes telefoto. Em baixo é possível ver outro um time lapse captado na mesma noite, mas com outro setup.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Milky Way Gradually Transitioning from Summer to Winter in a Wonder Night Show above Canais do Guadiana
A starry night scene captured at the end of Summer season from the wonderful region of Canais do Guadiana, in Mértola, at Dark Sky® Alqueva territory, shows a mosaic image of a galactic arch above the mountains and water channels from Guadiana river. The arch itself is featuring from left to right, a “Summer Milky Way” which is gradually disappearing in the western horizon due to the time of the year. Featured high in the sky, near the center top edge is Andromeda galaxy, while in the right side of the arch, in the Eastern sky, the “Winter Milky Way” is start to appearing with Auriga and Taurus constellation shinning bright. While stars from Summer Triangle are getting low – left side of the sky, the blueish star cluster of Pleiades is gradually getting high, to wonder stargazers around Northern hemisphere.
PT: Uma paisagem cénica captada no final da temporada de verão na maravilhosa região dos Canais do Guadiana, em Mértola, no território do Dark Sky® Alqueva, mostra uma imagem em mosaico de um arco galáctico sobre as montanhas e canais de água do rio Guadiana. O próprio arco apresenta, da esquerda para a direita, uma “Via Láctea de verão” que está gradualmente desaparecendo no horizonte ocidental devido à época do ano. No alto do céu, perto do limite superior central, está a galáxia de Andrómeda, enquanto no lado direito do arco, no céu oriental, a “Via Láctea de Inverno” está começando a aparecer com a constelação de Auriga e Taurus brilhando intensamente. Enquanto as estrelas do Triângulo de Verão estão a desaparecer – lado esquerdo do céu, o aglomerado de estrelas azuladas Pleiades está gradualmente a aparecer, para deslumbrar os observadores ao redor do hemisfério norte.
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Milky Way Shining Above a Typical Landscape from Alentejo Called Montado
Captured at the end of summer on a characteristic landscape type from Alentejo called Montado (a field spread by cork trees and cork oak trees) the image features the wonderful region of Mértola in Dark Sky® Alqueva, with half arch of the Milky Way shining high in the Sky at the end of Summer..
PT: Captada no final do verão numa típica paisagem alentejana chamada Montado (um campo repleto de sobreiros e azinheiras) a imagem revela a maravilhosa região de Mértola no Dark Sky® Alqueva, com meio arco da Via Láctea brilhando alto no céu no final do verão.
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A Passionate Stargazing Girl Enjoying the Beautiful Alignment Between Saturn and Jupiter
Captured in Mina de São Domingos, Dark Sky® Alqueva Mértola, the image shows a passionate girl while stargazing and enjoying the beautiful alignment between planets Saturn and Jupiter against a cloudy night. .
PT: Captada na Mina de São Domingos, no território do Dark Sky® Alqueva em Mértola, a imagem mostra uma entusiasta observadora do céu nocturno enquanto observa o belo alinhamento entre os planetas Saturno e Júpiter que parecem espreitar por entre as núvens de uma noite parcialmente nublada.
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A Meteor, Pleiades Star Cluster and Mars Over an Hermitage in Mértola
When spending a few nights enjoying the wonders of a starry sky, you can suddenly be surprised with a sporadic meteor or a fireball. Don’t forget to make a wish, or simply scream “wooow” and smile to the sky above with your friends or loved ones. The image shows a bright golden one captured in a single frame near Ermida de Nossa Senhora do Amparo in @darkskyalqueva Mértola territory. Above it is visible part of the winter Milky Way while at the center Pleiades star cluster is shining in blue. At the top right corner, the bright orange hue light belongs to planet Mars.
PT: Ao passar algumas noites apreciando as maravilhas de um céu estrelado, o leitor pode ser surpreendido repentinamente com um meteoro esporádico ou uma bola de fogo. Não se esqueça de fazer um pedido ou simplesmente gritar “uau” e sorrir para o céu com seus amigos, pois são sempre momentos surpreendentes. A imagem mostra um meteoro dourado e brilhante captado em um único disparo perto da Ermida de Nossa Senhora do Amparo no território Dark Sky® Alqueva em Mértola. Acima é visível parte da Via Láctea de inverno, enquanto no centro o aglomerado de estrelas Pleiades brilha em tons de azul. No canto superior direito, a luz laranja brilhante pertence ao planeta Marte.
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How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
The Moon Rising While Crossing the Clouds above a Peaceful Lagoon in a Time Lapse Video
A short time lapse sequence shows the moon rising above a peaceful lagoon from the rural hotel Naveterra, in Alandroal, located in the northern part of @darkskyalqueva Reserve. An interesting game of light and shadows can be enjoyed while the moon is getting high in the sky and crosses a layer of clouds.
PT: Uma breve sequência de lapso de tempo mostra a lua nascendo sobre uma lagoa tranquila do hotel rural Naveterra, no Alandroal, localizado na parte norte da Reserva Dark Sky® Alqueva. Um interessante jogo de luzes e sombras pode ser apreciado enquanto sobe mais alto no céu e atravessa uma camada de nuvens.
Blessing the Christmas Kiss of Jupiter and Saturn
Captured during the nautical twilight few days before the great conjunction, near Alqueva lake, at Dark Sky® Alqueva reserve, the image shows a Crescent Moon featuring a beautiful Earthshine, while planets Jupiter and Saturn were getting closer and closer preparing to “merge” into a single bright star in the sky, at a distance of only 0,1º (6 arc minutes) apart on the night of 21 st December 2020. Below is my shadow enjoying and blessing the planets Christmas kiss. The last conjunction so well visible with naked eye was 800 year ago.
PT: Captada perto do Lago Alqueva, no Dark Sky® Alqueva, durante o Crepúsculo Náutico e alguns dias antes da grande conjunção, a imagem mostra uma lua crescente que exibe um intenso earthshine enqunato os planetas Júpiter e Saturno se aproximam cada vez mais, preparando-se para se “fundirem” em uma única estrela bilhante no céu, a apenas de 0,1 graus de distância (6 minutos de arco), na noite de 21 de Dezembro 2020. Em baixo, está a minha silhuta humana enquanto apreciava o momento e de braços abertos abençoava o beiijo planetário neste espírito natalício. A última conjunção tão bem visível a olho nu foi há 800 anos atrás.
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The Christmas Kiss of Jupiter and Saturn
Captured during the twilight of 21st December 2020, in a green field lit by the moonlight near Alqueva lake, at Dark Sky® Alqueva reserve, the image shows the greatest conjunction in 800 years, with planets Jupiter and Saturn shinning so close that they appear to merge into a single bright star in the sky, being at a distance of only 0,1º (6 arc minutes) apart, they were really celebrating the winter solstice with a Christmas kiss. The last conjunction so well visible with naked eye was in the year 1226. Some have suggested that these two planets in conjunction could be the legendary Star of Bethlehem followed by three Magi, or wise men, guiding them about 2,000 years ago to find the newborn baby Jesus in the little town of Bethlehem.
PT: Captada ao Crepúsculo de 21 de Dezembro de 2020, num campo verde e iluminado pelo luar junto ao Grande Lago Alqueva, no Dark Sky® Alqueva, a imagem mostra a maior conjunção dos últimos 800 anos, com os planetas Júpiter e Saturno tão próximos um de outro que se parecem fundir em uma única estrela bilhante no céu. Encontrando-se apenas a uma distância de 0,1º (6 minutos de arco), parecem celebrar o Solstício de Inverno com um beiijo natalício. A última conjunção tão bem visível a olho nu foi no ano de 1226. Alguns têm sugerido que estes dois planetas em conjunção poderiam ser a lendária Estrela de Belém seguida pelos três Reis Magos, ou homens sábios, há cerca de 2.000 anos atrás para encontrar o recém-nascido Jesus na pequena cidade de Belém.
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You can choose the best style of print do you preffer to decorate in a fashion way your walls. Metal Prints with durable and vivid colors, Acrylic, Canvas or the highest quality Gallery Print – a 6 colour UV direct printing on acrylic glass (2mm) including light colours and reinforced by an aluminium dibond plate (3mm). Those type of Prints can highlight the final work in an artistic way, showing the photograph as a piece of art. I work with two high quality specialized Labs in US and in Europe, using Kodak Professional Endura Premier Metallic papers and Fujifilm Crystal Archive DP II Professional. You can select the image above or freely navigate to more than 800 photographs available in my gallery – each one with their own story and magic – and choose the photograph you would love to have in your home or office.
How to Order – Simple and easy, just “copy and paste” the link of this page or the image you choosed and fill it in the form below, with the size you want and any detail you wish to include on the message, like your country, name and postal address. Free Shipping included to all prints (except frames). For US and Europe the delivery is 4-8 working days, while to Portugal and Spain is normally 2-6 working days. After submitting the order through the form, I will contact you for the payment method (Paypal available or bank transfer) and with other questions related to your print(s) or requests. Once payment is confirmed, your order is shipped within 24h. In case you wish, I can send you separtely with no additional cost, a postcard autographed and numbered of the same image you have just bought, as a seal and proof of art work authenticity from the author. Let me know what is your wish.
Solar Chromosphere in Great Activity
Recently the Sun as featured a small group of sunspots belonging to the new Solar cycle 25, indicating a new growing cycle of its activity. The image captured from my backyard last December 3, 2020 around non with a Solar Ha telescope – at the wavelength of Hydrogen-Alpha – reveals an active surface showing three Active Regions named AR2790, AR2786 and AR2785. Near the sunspots (here seen as white dots due to the inversion) is also visible some plages (visible here as bown dark areas). The image also shows in great detail, spicules and supergranulation in the surface of the Sun. Granules, as well as sunspots, appear in a layer we call the Photosphere (sphere of light). Being from this same surface that emerges all the light we visually see, leaving our star, it is involved in the Chromosphere (sphere of color), which is the place where we can observe gas filaments visible on the image and solar Prominences, where Solar Flares do occur. With a diameter of 1,392,000 km, our Sun is composed of 73% Hydrogen, 25% Helium and 2% from heavier elements. The image is also featuring many prominences spread around the solar limb, in the Chromospher.
PT: Indiciando um novo ciclo crescente da sua actividade (ciclo Solar 25) a imagem que captei no passado dia 3 de Dezembro de 2020 por volta do meio-dia com um telescópio Solar Ha – no comprimento de onda do Hidrogénio Alfa – revela uma superfície muito activa mostrando três Regiões Activas nomeadas de AR2790, AR2786 e AR2785. Perto das manchas solares (aqui vistas como pontos brancos devido à inversão) também são visíveis algumas “praias solares”, regiões brilhantes na cromosfera situadas próximo das manchas (vistas na imagem como áreas escuras devido à inversão). A imagem também mostra a superfície supergranulada do Sol e repleta de espículas em grande detalhe. Os grânulos assim como as manchas solares, aparecem numa camada a que chamamos a Fotosfera (esfera de luz). Sendo desta mesma superfície que emerge toda a luz que vemos sair visualmente da nossa estrela, está envolta na Cromosfera (esfera de cor), sendo o local onde podemos observar Filamentos de Gás como os que são visíveis na imagem e Protuberâncias Solares, ou Proeminências, regiões onde ocorrem as chamadas “explosões solares”. Com um diâmetro de 1.392.000 km, o nosso Sol é composto por 73% de Hidrogénio, 25% de Hélio e 2% de elementos mais pesados. A imagem captada a partir do meu terraço, revela assim uma série de intensas protuberâncias que se espalham à volta do limbo solar, na cromosfera.
Technical details | Detalhes Técnicos
LUNT LS100T Ha | AZ-HEQ5GT | ASI178MC | Stack of 200 frames in very good seeing conditions (1 arcs). Alentejo, Portugal.
Andromeda Galaxy Immersed in Clouds of Glowing Ionized Hydrogen
With approximately 220,000 light-years across, Andromeda is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum galaxy, and about 30 other smaller galaxies. The large spiral galaxy comprises dark dust lanes in its spiral arms, traced by blueish hues of reflected starlight and a yellowish bright center. Inspired by Rogelio´s work (RBA) while capturing and describing for the first time this strange cirrus dust of faint reddish light surrounding Andromeda, the image features a long exposure of RGB light combined with Ha emission, to show the colorful field of faint glowing ionized hydrogen gas where the galaxy seems to be immersed in. I was surprised that despite this faint clouds, all the galaxy shape has a strong emission visible with Ha 7nm filter. These clouds formations visible in the foreground, belongs to our own Milky Way, as well as the several distinct colorful stars which surrounds the diffuse spiral shape. While its spiral arms stand out in visible light images, the arms look like rings in the GALEX ultraviolet views. Being sites of intense star formation, the rings have been interpreted as evidence that Andromeda collided with its smaller neighbouring elliptical galaxy M32 more than 200 million years ago. M32 is also visible as the bright circular diffuse shape on the right side of the core. M110, a dwarf elliptical galaxy visible above M31, is also a satellite of the Andromeda Galaxy. Captured in Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos, Portugal.
PT: Com aproximadamente 220.000 anos-luz de diâmetro, Andrómeda é a maior galáxia do Grupo Local, que também contém a Via Láctea, a galáxia do Triângulo e cerca de 30 outras galáxias menores. A grande galáxia espiral compreende faixas de poeira escura nos seus braços espirais, traçados por tonalidades azuis que reflectem a luz das estrelas e um centro brilhante amarelado. Inspirada no trabalho de Rogelio (RBA) ao captar e descrever pela primeira vez esta estranha poeira cirrus de luz avermelhada que envolve Andrómeda, a imagem mostra várias horas de exposição na faixa da luz visível RGB, combinada com a emissão Ha, para permitir assim revelar o brilho ténue de gás hidrogénio ionizado onde a galáxia parece estar imersa. Fiquei surpreso que, apesar dessas nuvens muito ténues, toda a forma da galáxia tem uma forte emissão visível com o filtro Ha 7nm. Essas formações de nuvens visíveis em primeiro plano, pertencem à nossa própria Via Láctea, assim como as várias estrelas coloridas distintas que envolve a forma espiral difusa. Enquanto seus braços espirais se destacam em imagens de luz visível, os braços parecem anéis quando vistos no ultravioleta através do GALEX (Galaxy Evolution Explorer ). Sendo locais de intensa formação estelar, os anéis têm sido interpretados como evidência de que Andromeda colidiu com sua menor galáxia elíptica vizinha M32, há mais de 200 milhões de anos. M32 também é visível como a forma difusa circular brilhante no lado direito do núcleo da M31. M110, uma galáxia elíptica anã visível acima de M31, é também um satélite da galáxia de Andromeda. Captado a partir do Observatório Oficial do Dark Sky® Alqueva, na Cumeada, Reguengos, Portugal.
Technical details | Detalhes Técnicos
Taka FSQ-106ED + QE-Reducer (f/3,6) – EM200 auto-guided | Nikon D850 modified | ISO1000 – Exp. 300 sec. x 31 + Exp. 15 sec. x 29 + Exp. 30 sec. x 27 lights | | ISO3200 – Exp. 600 seconds x 42 Ha 7nm | Total integration of 10h (87 Lights: 176 minutes + 42 Ha: 420 minutes). Processing on PixInsight 1.8.8-6 and Photoshop CC 2021. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz..
Andromeda Galaxy Shinning in Visible Light
Homo is the genus that includes modern humans and their close relatives, originals habitants of planet Earth.The genus is estimated to be between 1.5 and 2.5 million years old. At approximately the same time, in space, the light from our neighboring galaxy Andromeda M31, has departed from the point in space where it is located, in the constellation of Andromeda. While the light from this source was travelling in the cold vacum of space at the speed of light, for the long journey of 2.5 million years, here in our planet, we have been evolved from the Homo Habilis up to the point where we have the necessary technology to construct powerful telescopes, giving us the capability to observing, studying, photographing and understanding the wonders of the vast Universe. Besides the huge distances, Andromeda galaxy is the nearest spiral galaxy to our Milky Way. With approximately 220,000 light-years across, Andromeda is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum galaxy, and about 30 other smaller galaxies. This colorful scene shows the arms and core of Andromeda immersed in several distinct stars that surrounding the diffuse spiral shape, are actually stars from our own galaxy, the Milky Way, well visible in front of M31. To see Andromeda immersed in clouds of faint glowing ionized hydrogen gas, click here. While its spiral arms stand out in visible light images, the arms look like rings in the GALEX ultraviolet views. Being sites of intense star formation, the rings have been interpreted as evidence that Andromeda collided with its smaller neighboring elliptical galaxy M32 more than 200 million years ago. M32 is also visible as the bright circular diffuse shape on the right side of the core. M110, a dwarf elliptical galaxy visible above M31 (landscape version), is also a satellite of the Andromeda Galaxy. Captured in Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos, Portugal.
PT: Homo é o género que inclui os humanos modernos e seus parentes próximos, habitantes originários do planeta Terra. Este Género está estimado entre 1,5 e 2,5 milhões de anos. Aproximadamente ao