NGC 4801
| Galaxy NGC 4801 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 54 m 37.7 s |
| declination | + 53 ° 05 ′ 24 ″ |
| Appearance | |
| Morphological type | E0 |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.9 ′ × 0.7 ′ |
| Position angle | 138 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.054087 ± 0.000127 |
| Radial velocity | 16215 ± 38 km / s |
|
Stroke distance v rad / H 0 |
(729 ± 51) · 10 6 Lj (223.4 ± 15.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 26, 1789 |
| Catalog names | |
| NGC 4801 • PGC 43946 • CGCG 270-030 • MCG + 09-21-060 • 2MASX J12543771 + 5305241 • GC 3306 • H III 816 • h 1479 • GALEX ASC J125437.77 + 530524.5 | |
NGC 4801 is a 14.2 mag bright lenticular galaxy of the Hubble-type S0 in the constellation Great Bear in the northern sky . It is estimated to be 729 million light-years from the Milky Way and about 200,000 light years in diameter.
The object was discovered on April 26, 1789 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, S, lE".
Web links
- NGC 4801. SIMBAD, accessed February 14, 2015 .
- NGC 4801. DSO Browser, accessed February 14, 2015 .
- SIMBAD Astronomical Database