A Faint Giant Prominence in Motion Captured on 21st December, 2024
Alqueva´s Dark Sky Reserve | By Year: 2025 | Solar Ha | Time Lapses Photography
Captured last year on December 21, from Dark Sky® Alqueva region, Portugal, a high-resolution image and time lapse sequence features the chromosphere activity. This was my first light with the new Apollo 428M Max Pro camera from Player One Astronomy, and thanks to its high sensitivity and low noise cooled at -10, I was able to reveal this giant faint prominence in motion, dozens of times larger than our planet Earth. Stability of the atmosphere was average and the prominence was so so faint that I had to overexpose during the capture to reveal details, using then a black disc on post processing to cover the surface like a coronograph, helping drive our attention to most interesting regions of the image. The final result is a 4K high resolution solar time lapse footage comprising around 1h15 of photos.
PT: Captada no ano passado, a 21 de Dezembro, a partir do Dark Sky® Alqueva, Portugal, uma imagem de alta resolução e sequência de time-lapse revela a actividade da cromosfera neste dia. Esta foi a “first light” com a nova câmara Apollo 428M Max Pro da Player One Astronomy, e graças à sua alta sensibilidade e baixo ruído, arrefecida a -10º, foi possível revelar esta proeminência gigante e ténue em movimento, dezenas de vezes maior que o nosso planeta Terra. A estabilidade da atmosfera era mediana e a proeminência tão ténue que tive de sobre-expor o disco solar durante a captura para revelar alguns detalhes, utilizando posteriormente um disco negro no pós-processamento para cobrir a superfície como um coronógrafo, ajudando assim a dirigir a nossa atenção para as regiões mais interessantes da imagem. O resultado final é um time lapse em alta resolução 4K, composta por cerca de 1h15 de imagens.
Above are still images captured at different times. Below is possible to watch the video time lapse sequence compiling 211 shots processed, each one as result of a stack of the best 200 frames from each raw video. The final result is a 4K high resolution time lapse movie comprising around 1h15 of images.
PT: Acima duas imagens captadas com alguns minutos de intervalo. Em baixo é possível ver o vídeo time lapse compilando 211 captações processadas, cada uma como resultado de um stack dos melhores 200 frames de cada vídeo raw. O resultado final é um filme time lapse de alta resolução de 4K que condensa cerca de 1h15 de imagens.
Technical details | Detalhes Técnicos
SW Esprit 120ED Professional | EQ-6 Pro mount | Daystar Quark Prominence filter| Player One Apollo 428M Max Pro |Focuser Sesto Senso 2 | Stack of 200 frames for each single image, captured in average seeing conditions from Dark Sky® Alqueva territory, Portugal.
Important Note | Nota Importante: Never look and point a telescope or any other optical equipment directly to the sun without a proper and specialized safty filters! It can blind you forever. PT: Nota Importante – Nunca aponte um telescópio ou qualquer equipamento óptico directamente para o sol e observe através dele sem filtros especializados e seguros. Causará cegueira irreversível!
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