A Blue Horse Head is Shining in Space Surrounded by Faint Dust
Alqueva´s Dark Sky Reserve | By Year: 2021 | Deep Sky Wide Field
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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