Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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Sh2-155  Cave Nebula, Pete Bouras
Sh2-155  Cave Nebula
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Sh2-155 Cave Nebula

Getting plate-solving status, please wait...
Sh2-155  Cave Nebula, Pete Bouras
Sh2-155  Cave Nebula
Powered byPixInsight

Sh2-155 Cave Nebula

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Description

Processed data from my first year in AP anew, this time in PI with the new tools and 3 years more experience.
Only 3 hrs of integration but taken from a Bortle 1 location did help quite a bit.
 DSLR  data was a bit noisy compared to the astro cams I use now, Topaz did a better job than NoiseX in some sections.


Sh2-155 (also designated Caldwell 9, Sharpless 155 or S155) is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula, though that name was applied earlier to Ced 201, a different nebula in Cepheus. Sh2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 725 parsecs (2400 light-years) from Earth.

Thanks for looking 
Clear Skies!
-Pete

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    Sh2-155  Cave Nebula, Pete Bouras
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    Sh2-155  Cave Nebula, Pete Bouras
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Description: some tweaks to stretch and color

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Sh2-155  Cave Nebula, Pete Bouras

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