NGC 4731
| Galaxy NGC 4731 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 51 m 01.1 s |
| declination | -06 ° 23 ′ 35 ″ |
| Appearance | |
| Morphological type | SB (s) cd |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.2 mag |
| Angular expansion | 6.6 ′ × 4.2 ′ |
| Position angle | 95 ° |
| Surface brightness | 15.0 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4697 group LGG 314 |
| Redshift | 0.004967 ± 0.000010 |
| Radial velocity | 1489 ± 3 km / s |
|
Stroke distance v rad / H 0 |
(62 ± 4) · 10 6 ly (19 ± 1.3) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | April 25, 1784 |
| Catalog names | |
| NGC 4731 • PGC 43507/1033347 • MCG -01-33-026 • IRAS 12484-0607 • 2MASX J12510109-0623349 • GC 3254 • H I 41 • h 1452 • HIPASS J1251-06 • LDCE 904 NED261 • HOLM 472A | |
NGC 4731 is a barred spiral galaxy of the Hubble type SBc / P in the constellation Virgo on the ecliptic . It is an estimated 62 million light years away from the Milky Way and about 130,000 light years in diameter . Together with PGC 43526 it forms the galaxy pair Holm 472 .
In the same area of the sky are u. a. the galaxies NGC 4775 , NGC 4786 , NGC 4697 , IC 3812 .
The object was discovered by Wilhelm Herschel on April 25, 1784 .