M22 Globular Cluster in Sagittarius

M22 is a very remarkable object, one of the nearer globular clusters, lying 10,000 light years distant. The stars are spread over a region roughly 200 light years in diameter, and receding from us at 144 km/sec. It is visible to the naked eye, as it is brighter than the Hercules globular cluster M13 and outshined only by the two bright southern globulars (not in Messier's catalog), Omega Centauri (NGC 5139) and 47 Tucanae (NGC 104) - this is the ranking of the four brightest in the sky.

M13 through a telephoto lens 200 mm

I take this image through a Celestron 8 at f/3,3 on Pixcel 237 CCD. LRGB image are composite of 4x30 second exposure of luminance layer and each of RGB component 3x30 second exposure.

 


(C) Copyright 1996 - 2017 by Andjelko Glivar. All rights reserved. This material may not be published in any form without permission.

 

 


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