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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