NGC 4808
| Galaxy NGC 4808 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 55 m 48.9 s |
| declination | + 04 ° 18 ′ 15 ″ |
| Appearance | |
| Morphological type | SA (s) cd:; HII LINER |
| Brightness (visual) | 11.6 mag |
| Brightness (B-band) | 12.3 mag |
| Angular expansion | 2.8 ′ × 1.1 ′ |
| Position angle | 127 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 315 |
| Redshift | 0.002533 +/- 0.000017 |
| Radial velocity | 759 +/- 5 km / s |
|
Stroke distance v rad / H 0 |
(31 ± 2) x 10 6 ly (9.5 ± 0.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 17, 1786 |
| Catalog names | |
| NGC 4808 • UGC 8054 • PGC 44086 • CGCG 043-071 • MCG + 01-33-028 • IRAS 12532 + 0434 • GC 3311 • H I 141 • h 1480 • LDCE 0904 NED279 | |
NGC 4808 is a 11.6 likes bright spiral galaxy of Hubble type Sc in the constellation of Virgo , which is about 31 million light-years from the Milky Way's center.
It was discovered on April 17, 1786 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "vB, cL, E np-sf".