104 x 240 sec (7 hours of integration) ISO 1250
Dark, bias and flat frames
Stacked in DSS
Post-processing in PixInsight. GIMP2

The Triangulum Galaxy is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum is one of many favorite deep sky target for astrophotographers around the world. It is catalogued as Messier 33 or NGC (New General Catalogue) 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way. It is one of the most distant permanent objects that can be viewed with the naked eye.

The galaxy is the smallest spiral galaxy in the Local Group (although the smaller Large and Small Magellanic Clouds may have been spirals before their encounters with the Milky Way), and is believed to be a satellite of the Andromeda Galaxy or on its rebound into the latter due to their interactions, velocities,[8] and proximity to one another in the night sky. It also has an H II nucleus.