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M42, Orion Nebula 20060221, 20:23-20:58 EST Winter Star Party, West Summerland Key, Florida Scale: 1.3 arc seconds per pixel Image Dimensions: 75.6 X 50.4 arc minutes (3504 X 2336) Equipment: Canon EOS 20Da, Meade 8" LX200 GPS SCT f6.3, Celestron f6.3 focal reducer (optical path focal ratio 7.1); guided with SBIG ST-7XME controlled by CCDSoft, and Meade 4" LX3 2045 SCT f10 as guidescope. Images: Core: 15 30 sec @ ASA 800, median combine Outer regions: 6 120 sec @ ASA 800, sum combine RAW images captured with DSLRFocus V3; calibrated (darks and flats) and converted to TIF with Images Plus; registered and combined with RegiStar; final processing with Picture Window Pro 3.5 |
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Winter Star Party 20060225 |