WR 134 Wolf-Rayet Star Immersed in a Colorful Complex of Hydrogen and Oxygen Gas


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Captured in HaOIII and RGB light, the image features a deep wide field view of WR 134, a variable Wolf-Rayet star located around 6,000 light years away from our planet Earth in the constellation of Cygnus, which is surrounded by a faint bubble nebula traced by the glow of ionized hydrogen and oxygen gas, blown by the intense radiation and fast wind from the star. WR 134 is less than a degree away from WR 135. Both stars lie within a shell of hydrogen thought to have been swept up from the interstellar medium when one or both stars were on the main sequence. The greenish shell is over forty parsecs wide and contains about 1,830 times, the solar mass, of hydrogen. It is unclear which of the two stars is primarily responsible for creating the shell. The nebula seems to be immersed in a much larger complex cloud full of reddish hydrogen and greenish oxygen gas and among them, we can see dozens of interesting objects such as small planetary nebulas Ou6, Pa143, MoMi6, StDr109 and a few filaments from Super Nova Remnant, such as SNR G73.9+0.9 and SNR G749.9+1.2. The image was captured from Dark Sky® Alqueva Observatory, Cumeada, in Portugal, with the New ZEUS 455C Pro. from Player One Astronomy.


PT: Captada em comprimentos de onda diferentes entre a luz Ha, OIII e RGB, a imagem apresenta uma amplo campo de céu profundo da WR 134, uma estrela Wolf-Rayet variável localizada a cerca de 6.000 anos-luz de distância do nosso planeta Terra na constelação do Cisne, que é cercada por uma ténue nebulosa esverdeada em forma de bolha traçada pelo brilho do hidrogénio ionizado e gás oxigénio, soprado pela radiação intensa e vento rápido da estrela central. WR 134 está a menos de um grau de distância da WR 135. Ambas as estrelas estão dentro de uma camada de hidrogénio que se acredita ter sido varrida do meio interestelar quando uma, ou ambas as estrelas estavam na sequência principal. A camada esverdeada tem mais de quarenta parsecs de largura e contém cerca de 1.830 vezes a massa solar de gás hidrogénio. Não está claro qual das duas estrelas é a principal responsável pela criação da camada. A nebulosa parece estar imersa em uma nuvem complexa muito maior, cheia de hidrogénio avermelhado e gás oxigénio esverdeado e entre eles, podemos ver dezenas de objetos interessantes, como pequenas nebulosas planetárias Ou6, Pa143, MoMi6, StDr109 e alguns filamentos de Super Nova Remanescente, como SNR G73.9+0.9 e SNR G749.9+1.2. A imagem foi captada a partir do Observatório Oficial do Dark Sky® Alqueva, na Cumeada, Portugal, com uma câmara Player One Astronomy, a nova 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 the image without the presence of the stars to appreciate only the nebulae field, intended to help conduct the reader attention to the most interesting parts of the image..

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 uma versão da imagem sem as estrelas para se apreciar melhor as nebulosas, em formato de paisagem e retrato com o objetivo intencional de ajudar a conduzir a atenção do leitor para as partes mais interessantes da imagem.

      


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 36h (33 in HaOIII + 3h in RGB). Processing on PixInsight 1.8.9-2 and Photoshop CC 2024. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz, Portugal.

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