Deer Lick Group
NGC 7317 & 7331
Wide field view of Stephan's Quintet (Hickson Compact Group 92 and NGC
7317-7320), and the Deer Lick Group (NGC 7331 and others) in the constellation
Pegasus. Four of the galaxies in Stephan's Quintet are approximately 300 million light
years distant, with the other galaxy a foreground object at approximately 40 million
light years distance. The Deer Lick Group is also located approximately 40 million
light years from us.
Image acquisition dates: September 4, 5 and 6, 2010.
Camera: SBIG STL11000
Filters: AstroDon LRGB
Camera control software: CCDSoft
Guiding/adaptive optics: self-guided
Camera temperature: -10C
Telescope: Astro-Physics 155EDF with 4" field flattener, 1178mm focal length (f/7.6)
Image scale 1.57 arc sec per pixel.
Telescope control software: TheSky6, Focusmax
Total exposure time 9 hours: 17 x 10 min Luminance, 12 x 10 min Red, 13 x 10 min
Green, and 12 x 10 min Blue, all un-binned.
Processing: CCDStack2, Photoshop CS5.