Globular Star Cluster M53
Globular star cluster M53 is one of the more outlying globulars, being about 60,000 light years away from the Galactic center, and almost the same distance (about 58,000 light years) from our Solar system. At this distance, its apparent angular diameter of 13' corresponds to a linear diameter of roughly 220 light years. It is rapidly approaching us at a velocity of 112 km/s.
Johann Elert Bode discovered it on February 3, 1775, and Charles Messier independently rediscovered and cataloged it on February 26, 1777.