Caldwell 1 (NGC 188) is a open cluster located within the constellation Cepheus.
C1 is best viewed during Fall, is magnitude 8.1*, and can be viewed with binoculars. It is 14' in size. For reference, the full moon is 30' (arc minutes) in size.
- open cluster
- 00 44.4
- +85 20'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.