M15 in Pegasus

Copyright: Adam Block/NOAO/AURA/NSF

M15 is a globular cluster in the constellation of Pegasus. It can be seen with the naked eye under very dark skies, and binoculars will show it as a fuzzy round patch. M15 shines at magnitude 6.50 from a distance of approxiamtely 33,000 light years. It is one of hundreds of globular clusters which reside in a halo around our Galaxy. The stars within are mostly very old red giant stars and are crammed into an area no more than 130 ly across.
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