M15 (NGC 7078) is a globular cluster located within the constellation Pegasus, in the Galactic Center of the Milky Way Galaxy. in the Local Group of galaxies.
M15 is best viewed during early spring, is magnitude 6.4*, and can be viewed with small binoculars. It is 12.3' 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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