M28 (NGC 6626)
Messier 28 (NGC 6626) is a globular cluster located in the constellation Sagittarius, in the Galactic Center of the Milky Way Galaxy in the Local Group of galaxies. M28 is 18,000 light years away from Earth.
M28 is best viewed during late summer, is magnitude 7.7, and can be viewed with binoculars. M28 is 11' in apparent 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.