Messier 13 : The Hercules Cluster
10 frames x 1 minutes @ 1600 ISO
Celestron 8 @ f/10 (D=200mm F=2000mm)
Auto-guided through Orion ShortTube (D=80mm F=400mm)
Processed with DeepSky Stacker, and the GimpLocation: La Rosette, Hemmingford, Qc, Canada.
Date/Time: 2010/06/18 @ 22:56 EDT
Limit Magnitude is around ~15.5 according to sky-map.org
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