NGC 5634

A small Milky Way globular cluster, located about 69,000 light years from the galactic center. At class IV, it's more concentrated than many globular clusters.

Many of the stars in this globular are variable.

NGC 5634 has the same position and radial velocity as does the Sagittarius dwarf spheroidal galaxy. Because of the dwarf galaxy's metal-poor population of stars, it is believed that NGC 5634 may have once been part of the dwarf galaxy - and been pulled away by the Milky Way's tidal field to become part of the Sagittarius stream.