NGC 4722
| NGC 4722 | |
|---|---|
Lenticular galaxy NGC 4722 | |
| Observation data (J2000 epoch) | |
| Constellation | Corvus |
| Right ascension | 12h 51m 32.3681s |
| Declination | −13° 19′ 47.993″ |
| Redshift | 0.004376 |
| Heliocentric radial velocity | 1312 ± 9 km/s |
| Distance | 79.3 ± 5.7 Mly (24.30 ± 1.75 Mpc) |
| Group or cluster | NGC 4699 Group |
| Apparent magnitude (V) | 12.8 |
| Characteristics | |
| Type | SB0/a(r) |
| Size | ~59,200 ly (18.15 kpc) (estimated) |
| Apparent size (V) | 1.8′ × 0.7′ |
| Other designations | |
| IRAS 12488-1303, 2MASX J12513239-1319482, IC 3833, MCG -02-33-031, PGC 43560 | |
NGC 4722 is a lenticular galaxy in the constellation of Corvus. Its velocity with respect to the cosmic microwave background is 1647 ± 25 km/s, which corresponds to a Hubble distance of 79.3 ± 5.7 Mly (24.3 ± 1.75 Mpc). In addition, two non-redshift measurements give a distance of 89.2 ± 39.3 Mly (27.35 ± 12.05 Mpc). It was discovered by German astronomer Wilhelm Tempel in 1882. It was also observed by French astronomer Guillaume Bigourdan on 15 April 1895 and listed in the Index Catalogue as IC 3833.
NGC 4722 and NGC 4723 are listed together as Holm 471 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.