M27 The Dumbbell Nebula 10 hours of exposure. 3 hours each of Ha and OIII added to 4 hours LRGB with TEC140@f5.6 and ML8300 camera. LRGB Lum 1x1 12x10m, RGB each 2x2 9x5m. Taken by Lynn Hilborn, WhistleStop Obs, Grafton, Ontario on July 24, 2012
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