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The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC (New General Catalogue) 598. With the D25 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.
The galaxy is the second-smallest spiral galaxy in the Local Group after the Large Magellanic Cloud, which is a Magellanic-type spiral galaxy.[7] It 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.[9]
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^De Vaucouleurs, Gerard; De Vaucouleurs, Antoinette; Corwin, Herold G.; Buta, Ronald J.; Paturel, Georges; Fouque, Pascal (1991). Third Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book.....D.
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^Ryden, Barbara; Peterson, Bradley M. (2009). Foundations of Astrophysics. New York: Pearson Addison-Wesley. p. 471. ISBN 9780321595584.
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^Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W. (October 1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". Astrophysical Journal Supplement. 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode:1997ApJS..112..315H. doi:10.1086/313041. S2CID 17086638.
The TriangulumGalaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC...
planets located in Triangulum. The constellation contains several galaxies, the brightest and nearest of which is the TriangulumGalaxy or Messier 33—a member...
is the third spiral galaxy. It is unclear whether the TriangulumGalaxy is a companion of the Andromeda Galaxy; the two galaxies are 750,000 light years...
stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695...
SMC and the initial Andromedan conquest of them. Triangulum: an entirely new area, the TriangulumGalaxy, which has only been featured in the Module E2...
Triangulum II (Tri II or Laevens 2) is a dwarf galaxy close to the Milky Way Galaxy. Like other dwarf spheroidal galaxies, its stellar population is very...
three variable stars ever detected in an external galaxy, variables 1, 2, and 3, in the TriangulumGalaxy (M33). These were followed up by Edwin Hubble with...
formation. M32 has a young stellar population as well. The TriangulumGalaxy is a non-dwarf galaxy that lies 750,000 light years from Andromeda. It is currently...
face-on spiral galaxyTriangulumGalaxy – Spiral galaxy in the constellation Triangulum – another galaxy sometimes called the Pinwheel Galaxy "Messier 101"...
and is the fourth-largest galaxy in the Local Group, after the Andromeda Galaxy (M31), the Milky Way, and the TriangulumGalaxy (M33). The LMC is classified...
following is a list of notable galaxies. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order...
the center of the Milky Way (Sagittarius A*) twice the mass of the TriangulumGalaxy, including its dark matter halo. Assuming it is a non-rotating black...
the TriangulumGalaxy. In the 10th century, Persian astronomer Abd al-Rahman al-Sufi made the earliest recorded identification of the Andromeda Galaxy, describing...
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the...
Galaxy – Spiral galaxy in the constellation Canes VenaticiPages displaying short descriptions of redirect targets TriangulumGalaxy – Spiral galaxy in...
30 Doradus region in the Large Magellanic Cloud and NGC 604 in the TriangulumGalaxy. The term H II is pronounced "H two" by astronomers. "H" is the chemical...
nearest bright stars List of nearest stars and brown dwarfs List of nearest galaxies Lists of astronomical objects Lists of constellations Lists of stars Lists...
orbit larger galaxies, such as the Milky Way, the Andromeda Galaxy and the TriangulumGalaxy. A 2007 paper has suggested that many dwarf galaxies were created...
currently limited mostly to objects in our galaxy and the Magellanic Clouds, but a few stars in other local group galaxies can now be examined in enough detail...
of TriangulumGalaxy. Dwingeloo 1 has two smaller satellite galaxies – Dwingeloo 2 and MB 3 – and is a member of the IC 342/Maffei Group of galaxies. The...
TriangulumGalaxy, located near the giant H II region IC 142 around 2.7 million light years away. It is the brightest star in the TriangulumGalaxy in...
"PAndAS' cubs: Discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulumgalaxies". The Astrophysical Journal. 705 (1): 758–765...
high speed between Andromeda and the TriangulumGalaxy. Astronomer Josh Simon considers this cloud to be a dark galaxy because of the speed of its rotation...
including galaxies beyond the Milky Way. The Andromeda Galaxy, for instance, was once referred to as the Andromeda Nebula (and spiral galaxies in general...
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