C55 - Saturn Nebula
Caldwell 55 (NGC 7009) also known as the Saturn Nebula is a planetary nebula located within the constellation Aquarius.
C55 is best viewed during Fall, is magnitude 8*, and can be viewed with binoculars. It is 2.5 x 1' in size. For reference, the full moon is 30' (arc minutes) in size.
- Saturn Nebula
- planetary nebula
- 2.5 x 1'
- 21 04.2
- -11 22'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.