Caldwell object C40 is a spiral galaxy located within the constellation Leo.
Caldwell C40 is best viewed during Spring, is magnitude 10.*, and can be viewed with small telescope. It is 3 x 2' in size. For reference, the full moon is 30' (arc minutes) in size.
- spiral galaxy
- small telescope
- 3 x 2'
- 11 20.1
- 18 21'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.
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