Galaxies - PeterNagy
M82: Cigar Galaxy in Ursa Major, Astrodon Luminance filter, 87 x 5 minutes, Unbinned 1x1. F/10, 2/15/2013. 

Celestron 8" EdgeHD with Astro-Physics Mach1GTO GEM. Atik 460EX mono. Hutech OAG. Lodestar. 

Captured and pre-processed with Nebulosity. Stacked and processed with PixInsight. PHD settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max Dec Duration: 75, Min Motion: 0.70, Calibration Steps: 125msec, Auto/Resist Switching, Extreme dithering and Settled at < 0.5, 3 sec guiding exposure.

M82: Cigar Galaxy in Ursa Major, Astrodon Luminance filter, 87 x 5 minutes, Unbinned 1x1. F/10, 2/15/2013.

Celestron 8" EdgeHD with Astro-Physics Mach1GTO GEM. Atik 460EX mono. Hutech OAG. Lodestar.

Captured and pre-processed with Nebulosity. Stacked and processed with PixInsight. PHD settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max Dec Duration: 75, Min Motion: 0.70, Calibration Steps: 125msec, Auto/Resist Switching, Extreme dithering and Settled at < 0.5, 3 sec guiding exposure.