Massive Clouds of Hydrogen Gas Glowing Along Cygnus Constellation in a Deep Wide Scene


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The deep wide field scene is a mosaic of 6 panels showing in Ha and OIII emission, the large complexity of bright and dark nebulosity located along the path of Cygnus constellation (the Swan). The view is mesmerising revealing a tremendous amount of hydrogen gas with intricate filaments of large and small scale, comprising dozens of well know nebulae such as the giant NGC 7000 (North America Nebula) and IC 5070, (Pelican Nebula). It’s also Incredible to compare the differences in angular size between some of this objects, being NGC 6888, the Crescent Nebula, visible in the right centre, as a suspended small bright shell. In the lower right corner, NGC 6990 and NGC 6992, the Veil Nebula, shines bright in red and greenish hues – Ha and OIII emission – as the remains of a supernova explosion. The image was captured from Dark Sky® Alqueva Observatory, Cumeada, in Portugal.


PT: Este campo amplo e profundo é um mosaico de 6 painéis revelando no comprimento de onda Ha (hidrogénio) e OIII (oxigénio), a grande complexidade de nebulosidade brilhante e escura localizada ao longo do caminho da constelação Cygnus (o Cisne). A visão é hipnotizante, revelando uma tremenda quantidade de gás hidrogénio-alfa com filamentos intrincados de grande e pequena escala, contendo dezenas de nebulosas bem conhecidas, como a grande nebulosa NGC 7000 (Nebulosa América do Norte) e IC 5070 (Nebulosa Pelicano). É também incrível de notar e comparar, as diferenças no tamanho angular entre alguns desses objetos, sendo NGC 6888, a Nebulosa Crescente, visível no centro direito como uma pequena concha brilhante suspensa. No canto inferior direito, NGC 6990 e NGC 6992, a Nebulosa do Véu, brilha intensamente em tons vermelhos e esverdeados – emissão Ha e OIII – como os restos mortais de uma explosão supernova. A imagem foi captada a partir do Observatório Oficial do Dark Sky® Alqueva, na Cumeada, Portugal.



Above: The image rotated upside down intended to help conduct the reader attention to the most interesting parts of the image. PT: Acima: A imagem com rotação de 180ºcom o objetivo intencional de ajudar a conduzir a atenção do leitor para as partes mais interessantes da imagem.. 

Technical details | Detalhes Técnicos

Canon Lens 70-200mm f/2.8 set to 70mm + Poseidon-C Pro Camera from Player One Astronomy | Sub Exp. 5 min with Anit-Halo PRO Dual-Band Filter 2″ (Ha+OIII) 3nm from Player One Astronomy | Mosaic of 6 panels (30 min per panel in HaOII + 15 min per panel in RGB). Mount EQ6 Pro – N.I.N.A. Processing on PixInsight 1.8.9-3, photoshop CC 2024. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.


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