Object: Whirlpool M51+NGC5195 Date: 20.02.2007 Location: Oberes Schlierental 1450m ü. M. SQM: 21.41m/s2 at 21:58UTC Telescope: Meade Schmidt-Newton 254mm f/4 Mount: ALT-7 Autoguiding: SBIG STV Camera: Canon EOS 20Da ISO speed: 1600 Dark Frame: Master-Dark Flat Frame: Master-Flat Exposure: 24 x 5minutes, total 120minutes |
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