Galaxies - PeterNagy
NGC2903 Galaxy. Pseudo-LRGB. 0.96"/pixel image scale.

Astrodon Red filter,  8 x 7 minutes, 1x1. 2/14/2015. 
Astrodon Green filter, 18 x 7 minutes, 1x1. 2/14/2015.  
Astrodon Blue filter, 18 x 7 minutes, 1x1. 2/14/2015.
Pseudo-Luminance from RGB.

TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with QSI OAG and Superstar, Optec Handy Stepper Motor focuser. 

Captured and automated with SGP. Calibration and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 1000, Min Move: 0.60 pixel, Search Region: 50 pixels, Calibration Steps: 125msec, Auto/Resist Switching, Very High dithering and Settle at < 1.0 for 8 seconds, 5 sec guiding exposure.

NGC2903 Galaxy. Pseudo-LRGB. 0.96"/pixel image scale.

Astrodon Red filter, 8 x 7 minutes, 1x1. 2/14/2015.
Astrodon Green filter, 18 x 7 minutes, 1x1. 2/14/2015.
Astrodon Blue filter, 18 x 7 minutes, 1x1. 2/14/2015.
Pseudo-Luminance from RGB.

TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with QSI OAG and Superstar, Optec Handy Stepper Motor focuser.

Captured and automated with SGP. Calibration and Post-processed with PixInsight. PHD2 settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 1000, Min Move: 0.60 pixel, Search Region: 50 pixels, Calibration Steps: 125msec, Auto/Resist Switching, Very High dithering and Settle at < 1.0 for 8 seconds, 5 sec guiding exposure.