M 22, NGC 6656
Object: Globular Cluster
Constellation: Sagittarius
Apparent Magnitude: 6.17
Est. Distance: 10.6 kly
Telescope: Celestron CPC 800 EQ Mount (with Wedge) @ f/10
Camera: QHY-8
Exposure: 3x300 sec (15 mins)
Guidescope: Orion EON 80mm ED
Guider: DMK 21AU04 with PHD Guiding
Date: 22nd August 2009
Wikipedia link