From Wikipedia: "Omega Centauri ( NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in...
The Pleiades (AKA The Seven Sisters, Messier 45) is an asterism and an open star cluster containing middle-aged, hot B-type stars. At a distance of about 444 light years, it is among th...