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Omega Centauri

C80, Melotte 118, NGC 5139

Globular Cluster in Centaurus

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Proper Name	None
Caldwell Number	C80
NGC/IC Number	NGC 5139
Other Designations	Omega Centauri (originally a stellar designation), Melotte 118
Constellation	Centaurus
Right Ascension	13h 26m 47s
Declination	-47° 28' 46"
Distance	15,800 light years 4,850 parsecs
Magnitude	Apparent: +3.7 Absolute: -9.9
Diameter	Apparent: 55' Actual: c.160 light years
Optimum Visibility	April / May (Usually visible from southern latitudes)
Notes	The brightest globular cluster in the skies of Earth, and one of few such clusters visible to the naked eye. Omega Centauri is also the largest and most massive globular cluster associated with the Milky Way Galaxy, containing some ten million stars within a spherical region some 160 light years across.

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