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...
In this photo you can clearly see the Diffuse Nebula IC 405, the emission nebula IC 410 also known as the Tadpole Nebula with its inner cluster NGC 1893, NGC 1931, IC 417 also known as ...