Object: Galaxy NGC7331 Date: 04.10.08 Location: Oberes Schlierental 1450m ü. M. SQM: 21.27m/s2 at 22.30UTC by -5°C Telescope: Astrooptik Keller Cassegrain 400mm f/9 Mount: ALT-7 Autoguiding: Second chip in SBIG STL-11000M Camera: SBIG STL-11000M Dark Frame: -20°C Exposure: 6x600s, total 60minutes |
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