UGC 2140

UGC 2140
UGC 2140 with the legacy surveys
Observation data (J2000 epoch)
Constellation	Aries
Right ascension	02^h 39^m 06.1^s[1]
Declination	+18° 23′ 02″[1]
Redshift	0.013583[1]
Apparent magnitude (V)	15.43[1]
Characteristics
Type	Irr[2]
Apparent size (V)	1.7′[1]
Other designations
VV 143, HCG 18, UGC 2140, Z 462-37, APG 258, MCG+03-07-037, Z 0236.3+1810, Arp 258

UGC 2140 is an irregular galaxy in the constellation Aries. It was thought to be a compact group of galaxies, catalogued as HCG 18, but in 1999 the object was found to be a single galaxy with multiple star-forming regions.[2]

References

1. "NASA/IPAC Extragalactic Database". Results for UGC 02140. Retrieved 29 October 2014.
2. Plana, H.; Amram, P.; de Oliveira, C. Mendes; Balkowski, C. (2000). "Kinematics and Morphology of Ionized Gas in Hickson Compact Group 18". The Astronomical Journal. 120 (2): 621–629. arXiv:astro-ph/0004358. Bibcode:2000AJ....120..621P. doi:10.1086/301506. S2CID 51747713.