NGC 4902
| Galaxy NGC 4902 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 00 m 59.73 s |
| declination | -14 ° 30 ′ 49.1 ″ |
| Appearance | |
| Morphological type | SB (r) b |
| Brightness (visual) | 10.9 likes |
| Brightness (B-band) | 11.7 mag |
| Angular expansion | 3 ′, 0 × 2 ′, 7 |
| Position angle | 70 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 321 |
| Redshift | 0.008916 ± 0.000017 |
| Radial velocity | 2625 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(114 ± 8) x 10 6 ly (35.0 ± 2.5) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | February 8, 1785 |
| Catalog names | |
| NGC 4902 • UGCA 315 • PGC 44847 • MCG -2-33-92 • IRAS 12583-1414 • 2MASX J13005972-1430492 • GC 3358 • H I 69 • h 1511 • HIPASS J1300-14 • LDCE 932 NED004 | |
NGC 4902 is a bar-spiral galaxy of the Hubble type SBb and lies in the constellation Virgo on the ecliptic . It is estimated to be 114 million light years away from the Milky Way and has a diameter of around 100,000 ly. Together with NGC 4897 and NGC 4899 , it forms the small galaxy group LGG 321.
In the same area of the sky are the galaxies NGC 4862 , NGC 4887 , NGC 4924 .
The supernovae SN 1979E , SN 1991X ( Type-Ia ) and SN 2011A (Type-IIn) were observed here.
The object was discovered on February 8, 1785 by William Herschel .
NGC 4902 group ( LGG 321 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 4902 | PGC 44847 | 114 |
| NGC 4897 | PGC 44829 | 109 |
| NGC 4899 | PGC 44841 | 114 |