Notes: Size reduced 50%. The background galaxies are about one tenth the apparent size of NGC 7331 and so lie roughly ten times farther away
Telescope: Celestron CPC 800 EQ Mount (with Wedge) with f/6.3 Focal Reducer
Camera: QHY-8
Filter: 2" Hutech IDAS Light Pollution Suppression
Exposure: 104x300 sec (8 h 40 mins)
Guidescope: Orion EON 80mm ED f/6.25
Guider: DMK 21AU04 with PHD Guiding
Date: 2nd-5th November 2009

Annotated Version