Stephan's Quintet, NGC 7317, 7318a/b, 7319, 7320 & 7320c
Object: Group of 5 Galaxies: NGC 7317 (E4), 7318 (E2 pec/SB(s)bc pec), 7319 (SB(s)bc pec), 7320 (SA(s)d) & 7320c ((R)SAB(s)0/a)
Constellation: Pegasus
Apparent Magnitude: NGC 7317: 14.6, 7318a: 14.3, 7318b: 13.9, 7319: 14.1, 7320: 13.2, 7320c: 16.7
Est. Distance: NGC 7317-8: 300 Mly, 7319: 360 Mly, 7320: 39 Mly, 7320c: 35 Mly
Wikipedia link

Telescope: Celestron CPC 800 EQ Mount (with Wedge) @ f/10
Camera: QHY-8
Exposure: 40x300 sec (3 h 20 mins)
Guidescope: Orion EON 80mm ED
Guider: DMK 21AU04 with PHD Guiding
Date: 22th August 2009