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...
Hercules Globular Cluster (zoomed-in) using only RGB data. Pre and Post processing using Pixinsight. Full details on Astrobin:
https://www.astrobin.com/00bzjj/E/