Omega Centauri Globular Cluster
Equipment: PW 20" w FLI PLO 9000 in Australia
Exposures: RGB 50 min bin 2 each, Lum 55 min bin 1
Processing: MaximD and Photoshop
Omega Centauri or NGC 5139, is a globular cluster in the constellation of Centaurus, in the Southern Hemisphere, that was discovered by Edmond Halley in 1677. Located at a distance of 15,800 light-years it is the largest globular cluster in the Milky Way galaxy at a diameter of roughly 150 light-years. It is estimated to contain approximately 10 million stars and a total mass equivalent to 4 million suns.
Omega Centauri is so distinctive from the other galactic globular clusters that it is thought to have an alternate origin as the core remnant of a disrupted dwarf galaxy.