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 Antennae Galaxies (NGC 4038 and NGC 4039), are a pair of interacting spiral galaxies located in the constellation Corvus, about 62 million light-years away from Earth