Object: Galaxies NGC4656/7 + NGC4631/27 Date: 28.12.2006 Location: Oberes Schlierental 1450m ü. M. SQM: 21.32m/s2 at 00:00UTC 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: total 100minutes |
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