Object: Galaxy NGC7331
Date: 03.08.08
Location: Oberes Schlierental 1450m ü. M.
SQM: 21.42m/s2 at 21.20UTC
Telescope: Astrooptik Keller Cassegrain 400mm f/9
Mount: ALT-7
Autoguiding: SBIG STV
Camera: Meade DSI III
Dark Frame: automatically
Exposure: 8 x 30s total 4minutes
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