Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
Cave nebula, Artūras Medvedevas
Cave nebula
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Cave nebula, Artūras Medvedevas
Cave nebula
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Description

I really loved the cave nebula I got in my widefield shot even though that was narrowband, that I decided to go big. Quite happy with overall result, and waiting for next autumn to get narrowband data on it as well. One interesting thing I learnt while processing this image is that LRGBCombination with "chrominance noise reduction" checkbox enabled created some weird halos around some of the stars, I even nearly gave up figuring out what is causing the issue, but tried disabling this option just for the sake of it and it worked, so I am really happy I managed to solve it

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Cave nebula, Artūras Medvedevas