M3 (NGC 5272) is a globular cluster located within the constellation Canes Venatici, in the Galactic Center of the Milky Way Galaxy. in the Local Group of galaxies.
M3 is best viewed during early spring, is magnitude 6.4*, and can be viewed with small binoculars. It is 16.2' 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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