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Globular star cluster (M13)

My favorite deep sky object...This tightly packed cluster of a half of million stars grouped together by gravity is located approximately 25,000 lightyears away in the constellation Hercules- 1600 ISO @ 40 second exposure. Taken with Canon Rebel XTi with my telescope set at 40 x power magnification.

(Single Image)

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Uploaded on April 22, 2009
Taken on April 15, 2009