M37 (NGC 2099)
Messier M37 (NGC 2099) is a open cluster located in the constellation Auriga, in the Perseus Arm of the Milky Way Galaxy. in the Local Group of galaxies.
Messier M37 is best viewed during winter, is magnitude 6.0*, and can be viewed with naked eye (just barely). It is 24' in size. For reference, the full moon is 30' (arc minutes) in size.
* The naked eye can see up to magnitude 8 objects under ideal dark sky conditions.
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