NGC 4902
Galaxy NGC 4902 |
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AladinLite | |
Constellation | Virgin |
Position equinox : J2000.0 , epoch : J2000.0 |
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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 |