Object: Bubble-Nebula NGC7635 Date: 16.10.2006 Location: Oberes Schlierental 1450m ü. M. SQM: 21.67m/s2 at 00.15UTC Telescope: Meade Schmidt-Newton 254mm f/4 Mount: ALT-7 Guiding: hand made at 70mm Vixen Refractor Camera: Canon EOS 20Da ISO speed: 1600 Dark Frame: automatically Filter: H-alpha Exposure: total 105minutes

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