Galaxies - PeterNagy
M33, Triangulum Galaxy re-processed using PixInsight's ArcSinh Stretch

M33, Triangulum Galaxy re-processed using PixInsight's ArcSinh Stretch

M33 Triangulum Galaxy. RGB + Luminance. 0.93"/pixel image scale.

This is a reprocessed version of the original using PixInsight's ArcSinh Stretch instead of Histogram Transformation. Blink between the original and this image and let me know which one you like better.

Astrodon I series Red filter, 12 x 5 minutes, 1x1. 11/17/2017.
Astrodon I series Green filter, 12 x 5 minutes, 1x1. 11/17/2017.
Astrodon I series Blue filter, 12 x 5 minutes, 1x1. 11/17/2017.
Astrodon I series Lum filter, 36 x 5 minutes, 1x1. 11/17/2017.

TEC 140 APO F/7 with TEC Field Flattener, Astro-Physics A-P1100GTO GEM. QSI660wsg. OAG and Ultrastar autoguider, 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: 2000, Min Move: 0.45, Calibration Steps: 250msec, Auto/Resist Switching, 1 sec guiding exposure.