IC 2560

IC 2560 is a spiral galaxy lying over 110 million light-years away from Earth in the constellation of Antlia. It was discovered by Lewis Swift in 1897.^[4]

IC 2560
IC 2560's spiral arms and barred structure, as taken by Hubble Space Telescope credit = ESA/Hubble & NASA Acknowledgement: Nick Rose
Observation data (J2000 epoch)
Constellation	Antlia
Right ascension	10h 16m 18.666s[1]
Declination	−33° 33′ 49.85″[1]
Redshift	0.0096[1]
Heliocentric radial velocity	2864 km/s[1]
Distance	110 million ly[2]
Apparent magnitude (V)	13.31[1]
Apparent magnitude (B)	12.53[1]
Characteristics
Type	(R')SB(r)b?[3]
Size	~150,000 ly (45.69 kpc) (estimated)[3]
Apparent size (V)	2.790 x 1.060[1]
Other designations
INTREF 409, NVSS J101618-333350, [VV2000c] J101619.3-333359, AGC 26999, IRAS 10140-3318, PSCz Q10140-3318, [VV2003c] J101619.3-333359, 6dFGS gJ101618.7-333350, IRAS F10140-3318, SGC 101405-3318.9, [VV2006c] J101619.3-333359, ESO-LV 375-0040, LEDA 29993, [CHM2007] LDC 729 J101618.66-3333498, [VV2010c] J101619.3-333359, ESO 375-4, 2MASX J10161866-3333498, [HB91] 1014-333, [VV98c] J101619.3-333359, HIPASS J1016-33, MCG-05-25-001, [TP95] IC 2560 1

The luminosity class of IC 2560 is II^[5] with a broad HI line^[6] containing regions of ionized hydrogen. Moreover, IC 2560 is an active Type 2 Seyfert Galaxy.^[7] It has a distinct bar structure in the center with the supermassive black hole at the core having a mass of 4.4+4.4
−2.2×10⁶ M_☉.^[8]

One supernova, SN 2020ejm (type Ia, mag. 16), was discovered in IC 2560 on 11 March, 2020.^[9]

NGC 3223 group

IC 2560 is a member of the NGC 3223 Group. There are 15 other galaxies in the group including NGC 3223, NGC 3224, NGC 3258, NGC 3268, NGC 3289, IC 2552 and IC 2559.^[10] Together, the group is part of the Antlia Cluster.^[11]