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20150213 Omega Centauri LRGB v2

Omega Centauri (NGC 5139) is a globular cluster in the southern constellation of Centaurus. It is the largest globular cluster in the Milky Way with a diameter of ~150 light years and is one of the few globular clusters visible to the naked eye with an apparent magnitude of 3.9.

 

This image was taken with a 20” (510mm) f/4.4 CDK and an FLI ProLine PL09000 CCD at AAT Siding Spring in Australia. It consists of 25 x 60 seconds Luminance and 120 seconds for Red, Green and Blue channels.

 

Re-process as the green channel was too prominent on the original

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Uploaded on February 17, 2015