Caldwell object C66 is a globular cluster located within the constellation Hydra. Caldwell C66 is best viewed during Spring, is magnitude 10.*, and can be viewed with small telescope. It is 10. in size. For reference, the full moon is 30' (arc minutes) in size.
- globular cluster
- small telescope
- 14 39.6
- -26 32'
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.
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