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Catalogue and alternative designations NGC 5139, Omega Centauri


Type Globular cluster 
Position  13 26.8, -47 29
Constellation Centaurus
Camera and Telescope STLXL6303E and 36.8 cm Ritchey Chretien
Focal Ratio F9
Exposure Details LRGB 85:60:60:60 Luminance 1x1, colours 2x2
Description Omega Centauri is the largest and brightest globular cluster in the night sky and is visible to the naked eye as a hazy spot even in moderately light polluted locations.  The distance is about 18,300 light years and the visual magnitude is 3.7.