Object: Galaxy NGC7331
Date: 28.09.08
Location: Oberes Schlierental 1450m ü. M.
SQM: 21.62m/s2 at 00.15UTC/29.09.08 by 0°C
Telescope: Astrooptik Keller Cassegrain 400mm f/9
Mount: ALT-7
Autoguiding: Second chip in SBIG STL-11000M
Camera: SBIG STL-11000M
Dark Frame: -30°C
Exposure: 600s
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