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It is catalogued as Messier 33 or NGC (New General Catalogue) 598. With the D 25 isophotal diameter of 18.74 kiloparsecs (61,100 light-years), the Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way.
Learn about Messier 33, the third-largest galaxy in our Local Group, and see its stunning mosaic image from Hubble. Discover its star formation rate, its spiral structure, and its possible future collision with Andromeda.
Apr 28, 2015 · Learn about the Triangulum Galaxy, the second nearest spiral galaxy to the Milky Way and the third largest in the Local Group. Find out its location, structure, history, stars, clusters, black hole and more from this comprehensive guide by Messier Objects.
This gigantic image of the Triangulum Galaxy — also known as Messier 33 — is a composite of about 54 different pointings with Hubble’s Advanced Camera for Surveys. With a staggering size of 34 372 times 19 345 pixels, it is the second-largest image ever released by Hubble.
Apr 22, 2014 · The Triangulum Galaxy (also known as M33) that is about 3 million light-years away from Earth. While its mass is not well understood — one estimate puts it between 10 billion and 40 billion times...
Learn about the Triangulum Galaxy (M33), a spectacular spiral galaxy in the constellation Triangulum that is believed to be a satellite of the Andromeda Galaxy. Find out how to locate, observe and photograph this galaxy with tips from an amateur astronomer who shares his images and techniques.
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Mar 25, 2014 · Learn about the Triangulum Galaxy, also known as Messier 33, a spiral galaxy in Triangulum constellation. Find out its facts, location, history, structure, and features, such as the X-ray source, the globular clusters, and the supernova remnants. See how to observe it with binoculars or a telescope.
