NGC 4722
Galaxy NGC 4722 / IC 3833 |
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AladinLite | |
Constellation | Crow |
Position equinox : J2000.0 , epoch : J2000.0 |
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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).