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...
This planetary nebula is located near M26 in the constellation Puppis. In distance, this nebula is closer than the M26 cluster. The nebula is a gaseous cloud, resulting from a sun-like...