Omega Centauri or NGC 5139


Ronald Piacenti Jr.

Brasilia-DF, Brazil

Celestron C6 Schmidt-Cassegrain;
SkyWatcher HEQ5 Pro mount;
Canon EOS T3i;
Celestron Focal Reducer 0.63

Omega Centauri (ω Cen or NGC 5139) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 15,800 light-years (4,850 pc), it is the largest globular cluster in the Milky Way at a diameter of roughly 150 light-years.