NGC 2784
| Galaxy NGC 2784 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Water snake |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 12 m 19.5 s |
| declination | -24 ° 10 ′ 21 ″ |
| Appearance | |
| Morphological type | SA (s) 0 ^ 0 ^: |
| Brightness (visual) | 10.3 mag |
| Brightness (B-band) | 11.3 mag |
| Angular expansion | 5.5 ′ × 2.2 ′ |
| Position angle | 73 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 2835 group LGG 172 |
| Redshift | 0.002305 ± 0.000117 |
| Radial velocity | (691 ± 35) km / s |
|
Stroke distance v rad / H 0 |
(21 ± 2) · 10 6 ly (6.56 ± 0.67) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | November 20, 1784 |
| Catalog names | |
| NGC 2784 • UGC A 152 • PGC 25950 • ESO 497-023 • MCG -04-22-005 • 2MASX J09121949-2410213 • SGC 091005-2358.0 • GC 1780 • H I 59 • h 3148 • GALEX ASC J091219.33-241021.4 • AM 0910-235 | |
NGC 2784 is a lenticular galaxy of the Hubble-type S0 in the constellation Water Snake south of the celestial equator . It is estimated to be 21 million light years from the Milky Way and about 55,000 light years in diameter.
The object was discovered by William Herschel on November 20, 1784 .