Caldwell object C28 is a open cluster located within the constellation Andromeda. Caldwell C28 is best viewed during Fall, is magnitude 5.7*, and can be viewed with naked eye (just barely). It is 5.7 in size. For reference, the full moon is 30' (arc minutes) in size.
- open cluster
- naked eye (just barely)
- 01 57.8
- +37 41'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.
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