Object: Omega Nebula M17 Date: 14.08.2007 Location: Oberes Schlierental 1450m ü. M. SQM: 21.46m/s2 at 22.05UTC by 11°C Telescope: Meade Schmidt-Newton 254mm f/4 Mount: ALT-7 Autoguiding: SBIG STV Camera: Canon EOS 20Da ISO speed: 1600 Dark Frame: Master-Dark at 11°C Flat Frame: Master-Flat at 0°USZ with Paracorr Exposure: 12 x 362s, total 72minutes |
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