Caldwell 88 (NGC 5823) is a open cluster located within the constellation Circinus.
C88 is best viewed during Summer, is magnitude 7.9*, and can be viewed with binoculars. It is 10' in size. For reference, the full moon is 30' (arc minutes) in size.
- open cluster
- 15 05.7
- -55 36'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.