NGC 2911
| Galaxy NCG 2911 |
|
|---|---|
![PGC 27167 & NGC 2911 [1]](https://de.wikipedia.org/wiki/Datei:NGC2911_NGC2912_-_SDSS_DR14.png)
|
|
| PGC 27167 & NGC 2911 | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 33 m 46.1 s |
| declination | + 10 ° 09 ′ 09 ″ |
| Appearance | |
| Morphological type | SA (s) 0: / Sy / LINER |
| Brightness (visual) | 11.5 likes |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 4 ′ × 3.1 ′ |
| Position angle | 140 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 226 LGG 177 |
| Redshift | 0.010617 ± 0.000017 |
| Radial velocity | (3183 ± 5) km / s |
|
Stroke distance v rad / H 0 |
(137 ± 9) · 10 6 ly (41.9 ± 2.9) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 11, 1784 |
| Catalog names | |
| NGC 2911 • UGC 5092 • PGC 27159 • CGCG 063-007 • MCG + 02-25-003 • 2MASX J09334609 + 1009093 • Arp 232 • GC 1869 • H II 40 • h 608 • GALEX MSC J093346.19 + 100914.7 • LDCE 655 NED002 | |
NGC 2911 = Arp 232 is a lens-shaped galaxy with an active nucleus of the Hubble-type S0 in the constellation Leo on the ecliptic . It is estimated to be 137 million light years from the Milky Way and about 170,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 2913 , NGC 2914 , NGC 2919 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies with concentric rings .
The object was discovered on March 11, 1784 by Wilhelm Herschel .
NGC 2911 group ( LGG 177 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 2911 | PGC 27159 | 137 |
| PGC 27167 | 148 | |
| NGC 2913 | PGC 27184 | 131 |
| NGC 2914 | PGC 27185 | 136 |
| NGC 2939 | PGC 27451 | 144 |
| PGC 27784 | MCG + 02-25-022 | 138 |
| PGC 27959 | UGC 5216 | 141 |
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide , Richmond 2006, ISBN 978-0-943396-76-7