M33 Triangulum Galaxy

The Triangulum galaxy (also known as spiral galaxy M33, Messier Object 33, Messier 33, M33 or NGC 598) is a spiral galaxy located in the Triangulum constellation. With between 30,000 and 40,000 million stars, it is small compared to its larger neighbors, the Milky Way and the Andromeda galaxy, which have, respectively, between 200,000 and 400,000 million and a trillion stars, but its size is similar. to that of the rest of the spiral galaxies in the universe.


Image obtained from the Anunaki Observatory in LRGB-Ha filters. In total there are approximately 8 hours of exposure, processed completely in PixInsight.

M33 is a member of the Local Group of galaxies, the third in brightness and size, and appears to be gravitationally linked to Andromeda, which is 750,000 light years away and which it orbits in a high eccentricity orbit.

M33 is one-tenth the mass of the Milky Way and measures about 60,000 light-years long, about half the size of our galaxy.

A recent study carried out by the Spitzer infrared telescope shows that M33 is larger than what can be seen in the visible, its dust clouds reaching further than what can be seen in the photographs. It is thought that this is due to supernova explosions and/or solar winds from young stars.

M33 is linked by a current of neutral hydrogen and according to recent studies also by various currents of stars to M31, in addition to having the outermost part of its disk of stars and gas distorted, which indicates a past approach between the two, and its final destination may be either ending up colliding and merging with the second or ending up participating in the collision between the Milky Way and Andromeda, either colliding with our galaxy, or orbiting the galaxy resulting from the collision of the two before also ending up merging with it, or even being expelled from the Local Group.


Data adquisition:

Baader Blue (CMOS-Optimized) 36 mm: 45×300,″(3h 45′)
Baader Green (CMOS-Optimized) 36 mm: 45×300,″(3h 45′)
Baader H-alpha 6.5nm (CMOS-Optimized) 36 mm: 17×900,″(4h 15′)
Baader Red (CMOS-Optimized) 36 mm: 45×300,″(3h 45′)
Baader UV/IR CUT Luminance (CMOS Optimized) 36 mm: 50×300,″(4h 10′)

Integration time:

19h 40