M21 Open Cluster in Sagittarius

M21 is a open cluster which shows quite a strong concentration toward its center and consists of 57 stars. Estimated distance is 4 250 ly.

M13 through a telephoto lens 200 mm

Image is obtained through a Celestron 8 at f/3,3 on Pixcel 237 CCD and consist of five 30-second exposures.


(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 This material may not be published in any form without permission.

 

 


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