NGC 4979
| Galaxy NGC 4979 / IC 4198 |
|
|---|---|
![NGC 4979 [1] SDSS](https://de.wikipedia.org/wiki/Datei:NGC4979_-_SDSS_DR14.jpg)
|
|
| NGC 4979 SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 07 m 42.820 s |
| declination | + 24 ° 48 ′ 38.13 ″ |
| Appearance | |
| Morphological type | Sbc / LINER |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 1.0 ′ × 0.7 ′ |
| Position angle | 100 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Affiliation | Coma galaxy clusters |
| Redshift | 0.021125 ± 0.000020 |
| Radial velocity | 6333 ± 6 km / s |
|
Stroke distance v rad / H 0 |
(283 ± 20) x 10 6 ly (86.9 ± 6.1) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 10, 1785 |
| Catalog names | |
| NGC 4979 • IC 4198 • UGC 8209 • PGC 45484 • CGCG 130-009 • MCG + 04-31-007 • 2MASX J13074277 + 2448379 • GC 3416 • H III 346 • 2MASS J13074279 + 2448380 • NSA 120008 • WISEA J130742.81 + 244838.3 | |
NGC 4979 = IC 4198 is a 14.3 mag bright bar-spiral galaxy of the Hubble type SB with an active galaxy core in the constellation Haar der Berenike in the northern sky . It is an estimated 283 million light years from the Milky Way and about 85,000 light years in diameter. The galaxy is considered a member of the Coma cluster of galaxies .
In the same area of the sky are u. a. the galaxies IC 854 and IC 4202 .
The object was discovered twice; first on April 10, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope , who described it as "eF, pL, lE, verified with 240 power" (observation listed as NGC 4979 ); then on June 20, 1895 by Stéphane Javelle (listed as IC 4198 ).