NGC 4813
| Galaxy NGC 4813 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 56 m 36.1 s |
| declination | -06 ° 49 ′ 04 ″ |
| Appearance | |
| Morphological type | Sa / Sy2 / LINER |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.3 x 0.5 |
| Position angle | 35 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.004650 ± 0.000123 |
| Radial velocity | (1394 ± 37) km / s |
|
Stroke distance v rad / H 0 |
(58 ± 4) · 10 6 ly (17.8 ± 1.3) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 23, 1789 |
| Catalog names | |
| NGC 4813 • PGC 44160 • MCG -01-33-055 • 2MASX J12563612-0649040 • GC 3316 • H II 777 • h 1482 • GALEX ASC J125636.15-064903.3 • LDCE 904 NED281 | |
NGC 4813 is a 13.5 mag bright spiral galaxy with an active nucleus of the Hubble type Sa in the constellation Virgo on the ecliptic . It is estimated to be 58 million light years from the Milky Way and about 25,000 light years across .
In the same area of the sky are u. a. the galaxies NGC 4775 , NGC 4786 , IC 833 , IC 3908 .
The object was discovered on March 23, 1789 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "F, S, R, bM".