C9 - Cave Nebula
Caldwell 9 also known as the Cave Nebula is a diffuse nebula located within the constellation Cepheus.
C9 is best viewed during Fall, is magnitude 7.7*, and can be viewed with binoculars. It is 50 x 10' in size. For reference, the full moon is 30' (arc minutes) in size.
- Cave Nebula
- diffuse nebula
- 50 x 10'
- 22 56.8
- +62 37'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.