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NGC 7293 (Caldwell 63) planetary nebula in Aquarius. Taken Sept 29, Oct 2, Oct 5, and Oct 6, 2007 with a DSI Pro II and Outback Cooler on a C80ED operating at f7.5. RGB subframes were 2 minutes, while the H-alpha subframes were 4 minutes and the OIII subframes were 6 minutes. The resulting total exposures were Ha = 140 min, OIII = 138, R=22 min, G= 36 min and B= 36 min. The final LLRGB composite was processed in the following combination Ha:(Ha+OIII) : (Ha+R):(OIII+G):(OIII+B). Captured with Envisage, calibrated and sigma combined in Iris with other processing using FITZ, PixInsight LE and Photoshop CS. North is up.
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