Messier M7 - NGC6475 - Ptolemy's Cluster in Scorpius

Messier M7 - NGC6475 - Ptolemy's Cluster in Scorpius - 29/6/2013 (Processed stack)

I borrowed an 8" Powernewt (from Jean-Marie Locci) and incorrectly recalled the f/2.84 focal reducer for Powernewt requiring 55mm back focus instead of 65mm earlier in the night. This shows strong coma due to being at ~58mm. See also 65mm version this date for a much improved image!

DeepSkyStacker 3.3.2 Stacked 100% of 6 Images ISO 800 120 Sec, 39 DARK, 75 BIAS, 0 FLATS, Post-processed with Adobe Photoshop CS5

Telescope - Jean Marie Locci's PowerNewt 200mm f/2.8 with Coma Corrector, no filters, Canon 40D DSLR - giving field 70'x106', Ambient 12C. EQMOD EQASCOM with Ascom 6 for mount control. Backyard EOS 2.09 for Image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Teleskop Service OAG9 Off Axis Guider with Starlight Xpress Superstar (mono) CCD guide camera and Stark Labs PHD auto guiding software.

MessierM7 Ptolemey's ClusterNGCNGC6475 M7 Ptolemy's ClusterOpen Cluster

From 2013 Where to next?