Galaxies - PeterNagy
NGC6946: Fireworks Galaxy. RGB. 0.96"/pixel image scale.

Astrodon Red filter,  10 x 10 minutes, 1x1. 8/15/2014. 
Astrodon Green filter, 10 x 10 minutes, 1x1. 8/15/2014.  
Astrodon Blue filter, 10 x 10 minutes, 1x1. 8/15/2014.  

TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with A-P Vario Finder 250mm focal length and Superstar, Optec Handy Stepper Motor focuser. 

Captured and automated with SGP. Calibration (including Dark Subtraction) and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 1000, Min Motion: 0.10, Calibration Steps: 550msec, Auto/Resist Switching, Extreme dithering and Settle at < 0.4, 1 sec guiding exposure.

NGC6946: Fireworks Galaxy. RGB. 0.96"/pixel image scale.

Astrodon Red filter, 10 x 10 minutes, 1x1. 8/15/2014.
Astrodon Green filter, 10 x 10 minutes, 1x1. 8/15/2014.
Astrodon Blue filter, 10 x 10 minutes, 1x1. 8/15/2014.

TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with A-P Vario Finder 250mm focal length and Superstar, Optec Handy Stepper Motor focuser.

Captured and automated with SGP. Calibration (including Dark Subtraction) and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 1000, Min Motion: 0.10, Calibration Steps: 550msec, Auto/Resist Switching, Extreme dithering and Settle at < 0.4, 1 sec guiding exposure.