Messier 33, the Triangulum Galaxy, is a spiral galaxy so named after the constellation in which it appears. At around 3 million light years from the Milky Way, it is a relatively close galaxy to us. It is the smallest spiral galaxy in the Local Group, which includes both the Milky Way and Andromeda in addition to numerous other smaller galaxies.

Image & Equipment Details:
Date: Multiple, 2014-2017
LRGB Image, 324 Minutes total Integration
R: 12X300s, 6X600s, Bin 1X1
G: 11X300s, 6X600s, Bin 1X1
B: 11X300s, 6X600s, Bin 1X1
L: 14X300s Bin 1X1

Calibrated with bias, flat, and dark frames
Processed in PixInsight
Temp: -25C (300s), -30C (600s)

Imaging Scope: Explore Scientific 127CF Apochromatic Triplet
Imaging Camera: SBIG STF-8300M

Annotated Image: