Triangulum Galaxy (M33)
Eastern Sierra Nevada, Tuttle Creek campground, California – November 1, 2019
— Ralph Paonessa
QSI 683wsg-8 -25° C * Takahashi FSQ-106EDX III refractor * f/5
LRGB 11 hr exposure
L 20 x 8 min = 2.7 hr
R 17 x 8 min = 2.3 hr
G 14 x 8 min = 1.9 hr
B 14 x 8 min = 1.9 hr
Ha 7 x 20 min = 2.3 hr
The Ha channel was used as a mask to enhance the saturation of Ha regions.
Photo ID: M33 LRGB v2