NGC7331 bei 400mm f/9 mit ST-2000XCM
Object: Galaxy NGC7331
Date: 29.08.08
Location: Oberes Schlierental 1450m ü. M.
SQM: 21.48m/s2 at 23.40UTC
Telescope: Astrooptik Keller Cassegrain 400mm f/9
Mount: ALT-7
Autoguiding: Second chip in SBIG ST-2000XCM
Camera: SBIG ST-2000XCM
Dark Frame: -10°C
Exposure: 17 x 300s, total 85minutes
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