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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