Object: Comet 17P/Holmes Date: 01.11.07 Location: Oberes Schlierental 1450m ü. M. SQM: 21.08m/s2 at 21.10UTC by -2°C Telescope: Meade Schmidt-Newton 254mm f/4 Mount: ALT-7 Autoguiding: SBIG STV Camera: Canon EOS 20Da ISO speed: 1600 Dark Frame: automatically Flat Frame: no Exposure: 1s + 2s + 4s +8s + 16s + 32s, total 63seconds

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