UGC 2812

UGC 2812
UGC 2812 captured by Hubble Space Telescope (brightness) and Pan-STARRS (color)
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	03h 39m 54.1s[1]
Declination	−02° 07′ 06″[1]
Redshift	0.035094[1]
Heliocentric radial velocity	10,521 km/s[1]
Distance	471 Mly (144.4 Mpc)
Apparent magnitude (V)	14.4
Characteristics
Type	SB+COMP
Size	1.0' x 0.7'
Notable features	Interacting galaxy
Other designations
PGC 13489, Arp 219, VV 495, CGCG 391-024, MCG +00-10-009, IRAS F03373-0216, NVSS J033952-020657

UGC 2812 known as Arp 219,^[2] are a pair of interacting galaxies located 470 million light-years away in the Eridanus constellation.^[1][3] Both galaxies appeared to be distorted and tangled with each other which suggests their inevitable merging to form an elliptical galaxy.^[4] Moreover, they present a near-infrared spectra which could result from starbursts.^[5] Both objects are part of Atlas of Peculiar galaxies, where they are categorized under galaxies that have adjacent loops which are a manifestation of structures that were formed by gravitational interactions.^[6]

1. ^ ^{a b c d e} "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-22.
2. ^ "Mantrap Skies Astronomical Image Catalog: ARP219". images.mantrapskies.com. Retrieved 2024-04-22.
3. ^ "UGC 2812 Galaxy Facts". Universe Guide. March 7, 2022. Retrieved 2024-04-22.
4. ^ "Galaxies - Merging and Interacting | Center for Astrophysics | Harvard & Smithsonian". www.cfa.harvard.edu. Retrieved 2024-05-03.
5. ^ Vanzi, Leonardo; Alonso‐Herrero, Almudena; Rieke, G. H. (September 1998). "Near‐Infrared Spectroscopy of Arp Interacting Galaxies". The Astrophysical Journal. 504 (1): 93–106. doi:10.1086/306051.
6. ^ "arp galaxies". www.stellar-journeys.org. Retrieved 2024-04-22.

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