NGC 4903
| Galaxy NGC 4903 |
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|---|---|
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| AladinLite | |
| Constellation | centaur |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 01 m 22.7 s |
| declination | -30 ° 56 ′ 06 ″ |
| Appearance | |
| Morphological type | SB (rs) c; Sy2 / HII |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.6 ′ × 1.3 ′ |
| Position angle | 73 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 324 |
| Redshift | 0.016461 +/- 0.000033 |
| Radial velocity | 4935 +/- 10 km / s |
|
Stroke distance v rad / H 0 |
(214 ± 15) · 10 6 ly (65.5 ± 4.6) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | March 30, 1835 |
| Catalog names | |
| NGC 4903 • PGC 44894 • ESO 443-G030 • MCG -05-31-013 • IRAS 12586-3039 • SGC 125839-3039.9 • GC 3359 • h 3450 • LDCE 0935 NED005 | |
NGC 4903 is a 13.0 mag bright barred spiral galaxy (and at the same time a Seyfert galaxy type 2) of the Hubble type SBc in the constellation of the Centaur , which is about 214 million light years away from the Milky Way.
It was discovered on March 30, 1835 by John Herschel with an 18-inch reflector telescope, which it marked with “vF, R, 30 arcseconds, attached to a star; the preceding of two “. The second object mentioned is NGC 4905 .