NGC 4091
| Galaxy NGC 4091 |
|
|---|---|
![NGC 4091 & NGC 4089 [1]](https://de.wikipedia.org/wiki/Datei:NGC4091_-_SDSS_DR14.jpg)
|
|
| NGC 4091 & NGC 4089 | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 05 m 40.089 s |
| declination | + 20 ° 33 ′ 20.64 ″ |
| Appearance | |
| Morphological type | S / LINER |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 0.9 '× 0.3' |
| Position angle | 43 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 374 |
| Redshift | 0.025638 ± 0.000090 |
| Radial velocity | 7686 ± 27 km / s |
|
Stroke distance v rad / H 0 |
(342 ± 24) x 10 6 ly (104.8 ± 7.3) Mpc |
| history | |
| discovery | Heinrich d'Arrest |
| Discovery date | May 2, 1864 |
| Catalog names | |
| NGC 4091 • UGC 7083 • PGC 38308 • CGCG 128-022 • MCG + 04-29-019 • 2MASX J12054008 + 2033201 • LDCE 864 NED015 • NSA 118291 • WISEA J120540.10 + 203320.8 | |
NGC 4091 is a spiral galaxy of the Hubble type Sbc with an active galaxy core in the constellation Coma Berenices in the northern sky . It is estimated to be 342 million light years from the Milky Way and about 90,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with NGC 4089 .
In the same area of the sky are u. a. the galaxies NGC 4092 , NGC 4093 , NGC 4095 , NGC 4098 .
The object was discovered by Heinrich Louis d'Arrest on May 2, 1864 .
Web links
Commons : NGC 4091 - collection of images, videos, and audio files
