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]
| Arp 273 | |
|---|---|
.jpg) | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 02h 21m 28.703s[1] |
| Declination | +39° 22′ 32.65″[1] |
| Distance | 300 million ly |
| Apparent magnitude (V) | 13.7[2] |
| Characteristics | |
| Type | SA(s)b pec[3] + SB(s)a pec[4] |
| Other designations | |
| 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] | |
One supernova has been observed in UGC 1810: SN 1962R (type unknown, mag. 15.9).[9]
References
edit- ^ a b c "Arp 273". SIMBAD Astronomical Database. Retrieved 2011-04-20.
- ^ "NASA/IPAC Extragalactic Database". Retrieved 2018-06-27.
- ^ "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.
- ^ "A galactic rose highlights Hubble's 21st anniversary". physorg.com. 2011-04-21. Retrieved 2011-04-21.
- ^ Transient Name Server entry for SN 1962R. Retrieved 17 July 2024.
External links
edit
- Space Fan News #19: Hubble Turns 21 on YouTube
- Image with information of scale & compass location retrieved 20/09/2011
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