Omega Centauri | Robot Astronomy Talk Show | NASA Spitzer



While the robots are away, a sad and lonely man calls in with a beautiful image of the Omega Centauri globular cluster.

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. It is estimated to contain approximately 10 million stars and a total mass equivalent to 4 million solar masses.

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.

Source: spitzer.caltech.edu https://en.wikipedia.org/wiki/Omega_Centauri

CREDIT: National Aeronautics and Space Administration

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