Caldwell 63 - NGC7293 - Helix Nebula - 23/8/2014 (Processed cropped stack)

Gradient largely removed in this crop, however noise is higher than I'd hoped. See version with Noise Ninja as well.

DeepSkyStacker 3.3.4 Stacked 85% of 8 Images ISO 800 @ 90 Sec, 26 DARK @ 120 Sec, 32 BIAS, 17 FLATS, Post-processed with Adobe Photoshop CC 2014

Telescope - PowerNewt 200mm f/4 with PowerNewt(ASA) f/2.84 Reducer/Coma Corrector, No filter, Baader BCF modified Canon 70D DSLR field 90' x 134' , Ambient 11C. EQMOD EQASCOM with Ascom 6 for mount control. Backyard EOS Pro 3.0.3 for Image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Stark Labs PHD auto guiding software.

CaldwellC63 NGC7293 Helix NebulaNGCNGC7293 C63 Helix NebulaPlanetary Nebula

From 2014 First AP modified camera