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

Cave Nebula (Sh2-155), Jason dain
Cave Nebula (Sh2-155)
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Cave Nebula (Sh2-155)

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Description

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 (Wikipedia). This is another continued project from last year where I added another 8 hrs to my existing shot using a DSLR. This is a very interesting area of space with many different types of objects.

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Cave Nebula (Sh2-155), Jason dain