Wide Field of Ced 51 Surrounded by Dark Nebulae Immersed in Reddish Ionized Hydrogen
Alqueva´s Dark Sky Reserve | By Year: 2026 | Deep Sky Wide Field
Located within the Lambda Orionis Ring in Orion constellation, the image features a deep wide field view captured in HaOIII and RGB light, of a dark complex nebulosity covering several LDN objects, from LDN1580 up to LDN1584. While the large complex seems to be immersed by reddish ionized hydrogen emission, at the center and close to LDN1584, glows a beautiful and small blueish reflection nebula, called Cederblad 51 or Ced 51, illuminated by the bright starlight of HD35956. All the field is surrounded by dark structures and intricate brown reddish dust shapes. The final image has a huge resolution of 235 Million MP, which can provide an incredible detailed view if zoomed in up to 100%. The image was captured from Dark Sky® Alqueva Observatory, Cumeada, in Portugal, with a ZEUS 455C Pro camera from Player One Astronomy, and comprises a total integration time of 25h. 19h of HaOIII emission and 6h of RGB light.
PT: Localizada no Anel Lambda Orionis, na constelação de Orionte, a imagem apresenta uma visão ampla e profunda captada na emissião de HaOIII e luz RGB, de uma nebulosidade escura e complexa que abrange vários objetos LDN, desde LDN1580 a LDN1584. Enquanto o grande complexo parece estar imerso em emissão avermelhada de hidrogénio ionizado, no centro e próximo de LDN1584, brilha uma bela e pequena nebulosa de reflexão azulada, chamada Cederblad 51 ou Ced 51, iluminada pela luz intensa da estrela HD35956. Todo o campo é rodeado por estruturas escuras e intrincadas formas de poeira castanha-avermelhada. A imagem final tem uma enorme resolução de 235 milhões de pixeis, que proporciona uma visão incrivelmente detalhada ao ser ampliada a 100%. Captada a partir do Observatório Oficial do Dark Sky® Alqueva, na Cumeada, Portugal, com uma câmara Player One Astronomy, ZEUS 455C Pro.
Below: The annotated version produced with PixInsight script, based in several known catalogues to identify the main objects in the image, as well as a close-up of Ced 51 reflection nebulae, as seen at 100% of the original.
PT: Em baixo: A versão legendada com anotação produzida pelo script do PixInsight baseado em vários catálogos reconhecidos, identificando assim os principais objectos visíveis na imagem, assim como um close-up a 100% do original revelando a nebulosa Ced 51.
Technical details | Detalhes Técnicos
Taka FSQ-106ED at F5 – EM200 auto-guided in N.I.N.A| Camera ZEUS 455C Pro from Player One Astronomy | Sub Exp. 5 min with Anit-Halo PRO Dual-Band Filter 2″ (Ha+OIII) 3nm from Player One Astronomy | Total integration of 25h (19 in HaOIII + 6h in RGB). Processing on PixInsight 1.8.9-3 and Photoshop CC 2026. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.
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