Object: Horse Head Nebula B33 Date: 20.12.2006 Location: Oberes Schlierental 1450m ü. M. SQM: 21.24m/s2 at 22:15UTC Telescope: Meade Schmidt-Newton 254mm f/4 Mount: ALT-7 Autoguiding: SBIG STV Camera: Canon EOS 20Da ISO speed: 1600 Dark Frame: Master-Dark Exposure: total 75minutes

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