M33 - The Triangulum Galaxy 2015-12-29 M33 or The Triangulum Galaxy is a spiral galaxy in the constellation of Triangulum. The total exposure time is 2 hours with Astrodon LRGB filters, TS Boren-Simon 8" Powernewt and Atik 460EX CCD. Check out my other photos! ← M42 - The Orion Nebula M45 - The Pleiades Cluster →