Object: Ghost Nebula vdB141 Date: 30.09.11 Location: Oberes Schlierental 1450m ü. M. SQM: 21.38m/s2 at 23:30UTC by 8°C Telescope: Astrooptik Keller Cassegrain 400mm f/3 Mount: ALT-7 Autoguiding: Second chip in SBIG STL-11000M Camera: SBIG STL-11000M Filter: LRGB Dark Frame: -25°C Exposure: 14xL600s, 3xR600s, 3xG600s, 3xB600s total 230minutes

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