NGC 4722
| Galaxy NGC 4722 / IC 3833 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Crow |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 51 m 32.4 s |
| declination | -13 ° 19 ′ 48 ″ |
| Appearance | |
| Morphological type | S0-a |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.8 ′ × 0.7 ′ |
| Position angle | 35 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.014487 ± 0.000150 |
| Radial velocity | 4343 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(189 ± 13) · 10 6 ly (57.9 ± 4.1) Mpc |
| history | |
| discovery | Wilhelm Temple |
| Discovery date | 1882 |
| Catalog names | |
| NGC 4722 • IC 3833 • PGC 43560 • MCG -02-33-031 • IRAS 12488-1303 • 2MASX J12513239-1319482 • | |
NGC 4722 = IC 3833 is a 12.8 mag bright lens-shaped galaxy of the Hubble type "S0-a" in the constellation Raven and about 189 million light years away from the Milky Way. She was spotted twice; in 1882 by Ernst Wilhelm Leberecht Tempel , who noted "Following [GC] 3244 [NGC 4714] are two more small class III nebulae which I have sketched, but have still not been able to measure" (discovery listed as NGC 4722) and on April 15, 1895 by Guillaume Bigourdan (listed as IC 3833).