Z 523-28, Z 0218.4+3909, CGPG 0218.4+3909, ZW V 223, KPG 64a, UZC J022128.6+392231, 2MASX J02212870+3922326, Arp 273, UGC 1810, MCG +06-06-023, PGC 8961, VV 323, VV 323a[1]
The location of Arp 273 (circled in blue)
Arp 273 is a pair of interacting galaxies, 300 million light years away in the constellation Andromeda. It was first described in the Atlas of Peculiar Galaxies, compiled by Halton Arp in 1966.[5] The larger of the spiral galaxies, known as UGC 1810, is about five times more massive than the smaller galaxy.[6] It has a disc that is tidally distorted into a rose-like shape by the gravitational pull of the companion galaxy below it, known as UGC 1813. The smaller galaxy shows distinct signs of active star formation at its nucleus,[7] and "it is thought that the smaller galaxy has actually passed through the larger one."[8]
^"Results for object NGC UGC 1810 (UGC 1810)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-28.
^"Results for object NGC UGC 1813 (UGC 1813)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-28.
^"Interacting galaxies Arp 273". National Optical Astronomy Observatory. Retrieved 2011-04-21.
^Usher, Oli; Villard, Ray (2011-04-20). "A galactic rose highlights Hubble's 21st anniversary". Archived from the original on 16 May 2011. Retrieved 2011-04-21.
^"NASA's Hubble Celebrates 21st Anniversary with "Rose" of Galaxies". HubbleSite. 2011-04-20. Retrieved 2011-04-21.
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