Sh2-155 - The colorful Cave Nebula (Distant Luminosity)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

Sh2-155 - The colorful Cave Nebula, Distant Luminosity

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Sh2-155 - The colorful Cave Nebula

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Sh2-155 - The colorful Cave Nebula

Sh2-155 - The Cave Nebula

this is a very colorful and interesting star formation region in the constellation Cepheus. It is composed of red Ha emission nebulae, brown dark nebulae and blue reflection nebulae. For my limited observing conditions, this was a horrifically difficult object to capture and process in HALRGB fighting through all the gradients and noise caused by severe light pollution. I hope that the long total exposure time paid off in the end and i salvaged a nice image from the data.

This image got selected as "Astrophoto of the week" by the German Amateur Astronomy Association VdS. See a nice, comprehensive text about the objects from an experts perspective here (in German, but maybe DeepL can handle it well):

https://www.astronomie.de/aktuelles-und-neuigkeiten/alle-news-im-ueberblick/detailseite/51-woche-der-hoehlennebel-sh2-155-tatsaechlich-eine-hoehle/

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Description: Revision with Adam Block's StarReduction method + fixing the shadows

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Astrometry.net job	4691251
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Sh2-155 - The colorful Cave Nebula

Sh2-155 - The colorful Cave Nebula

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Sh2-155 - The colorful Cave Nebula

Sh2-155 - The colorful Cave Nebula

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