NGC 5056
| Galaxy NGC 5056 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 16 m 12.3 s |
| declination | + 30 ° 57 ′ 01 ″ |
| Appearance | |
| Morphological type | Scd: / AGN |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.8 ′ × 1.0 ′ |
| Position angle | 0 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.018653 ± 0.000006 |
| Radial velocity | 5592 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(251 ± 18) x 10 6 ly (77.0 ± 5.4) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 13, 1785 |
| Catalog names | |
| NGC 5056 • UGC 8337 • PGC 46180 • CGCG 160-173 • MCG + 05-31-166 • IRAS 13138 + 3112 • KUG 1313 + 312 • 2MASX J13161233 + 3057009 • GC 3475 • H III 306 • h 1571 • NVSS J131612 + 305703 • LDCE 956 NED001 | |
NGC 5056 is a 13.0 likes bright spiral galaxy with an active galactic nucleus from Hubble type Sc in the constellation Coma Berenices the northern sky . It is estimated to be 251 million light years from the Milky Way and about 135,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 5041 , NGC 5057 , NGC 5065 , NGC 5074 .
The object was discovered on March 13, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, which was called “Two. The preceding vF, vS. The following 7 ′ or 8 ′ Nf the first, vF, vS ”noted. The former is NGC 5056, the second galaxy is NGC 5057 .