Object: Horse Head Nebula B33 Date: 01.02.11 Location: Oberes Schlierental 1450m ü. M. SQM: 21.73m/s2 at 22:30UTC by -3°C Telescope: Astrooptik Keller Cassegrain 400mm f/3 Mount: ALT-7 Autoguiding: Second chip in SBIG STL-11000M Camera: SBIG STL-11000M Filter: Luminance Dark Frame: -30°C Exposure: 4xL600s, 3xR600s, 3xG600s, 3xB600s, total 130minutes |
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