UGC 2140

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]

UGC 2140
UGC 2140 with the legacy surveys
Observation data (J2000 epoch)
Constellation	Aries
Right ascension	02h 39m 06.1s[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