Polaris Immersed in the Faint Dust Clouds from Integrated Flux Nebula – IFN

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A deep wide field view shows the star Polaris immersed in the faintest diffuse clouds from IFN, the gas and dust from Integrated flux nebulas (IFN) which lies beyond the main body of our Milky Way Galaxy. According to its discoverer Steven Mandel (2005), they are “high galactic latitude nebulae that are illuminated not by a single star (as most nebula in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way. These nebulae clouds – an important component of the interstellar medium – are composed of dust particles, hydrogen and carbon monoxide and other elements”. Not visible though in a single long exposure, to show a result like these, I had to left my camera exposing for several nights in order to accumulate a total amount of 13 hours, to be able to reveal the faintest light of IFN also immersed in a colorful starfield which surrounds Polaris, well known, as the Northern Star.

PT: Uma visão ampla e profunda mostra a estrela Polar imersa nas nuvens difusas e ténues de gás e poeira da Nebulosa de Fluxo Integrado (IFN) e que ficam para além do corpo principal da nossa galáxia. De acordo com seu descobridor Steven Mandel (2005), estas são “nebulosas de alta latitude galáctica que são iluminadas não por uma única estrela (como a maioria das nebulosas no plano da Galáxia), mas pela energia do fluxo integrado de todas as estrelas da Via Láctea. Essa nebulosas – um importante componente do meio interestelar – são compostas essencialmente por partículas de poeira, hidrogénio e monóxido de carbono, entre outros elementos”. Não sendo contudo visíveis em uma única longa exposição, para mostrar um resultado como este, foi necessário fazer longas exposições por várias noites até acumular um total de 13 horas, para assim poder revelar a fraca nebulosidade da IFN, imersa em um campo estelar colorido que circunda a estrela Polaris, também conhecida por Estrela do Norte.



Above –  A cropped portrait and starless version shows interesting details and intricate structures on the IFN clouds. These different perspectives above and below, intended to help conduct the reader attention to the most interesting parts of the image.

PT: Acima, uma versão crop e sem estrelas revela detalhes interessantes nas estruturas intrincadas das nuvens IFN. Estas diferentes perspectivas visíveis acima e abaixo, permitem ajudar a conduzir a atenção do leitor para as partes mais distintas e interessantes da imagem.

Technical details | Detalhes Técnicos

Canon fixed prime lens 300mm at f/3,2 + Canon 6D not modified | ISO1600 – Exp. of 100 seconds. Mount EQ6 Pro – Auto-guiding off |Total integration of 783 minutes (13 hours). Processing on PixInsight 1.8.8-12 and Photoshop CC 2022. Cumeada Observatory from Dark Sky® Alqueva Reserve, Reguengos de Monsaraz.


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