Messier 27 imaged using a hydrogen alpha filter.

Date: July 23, 2011
Constellation: Vulpecula
Location: Dominion Astrophysical Observatory, Victoria, BC
Optics: Tele Vue NP-127is used at f/5.2
Mount: Paramount ME, guided using PhD
Camera: SBIG ST-2000XM with CFW10 and Ha Astrodon Filter
Exposure: Ha 8x10m (at -20C), binning 1x1
Processing: Light frames calibrated with dark frames in ImagesPlus. Light frames normalized and combined using MinMax Excluded.