NGC 1241
| Galaxy NGC 1241 |
|
|---|---|
|
|
| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Eridanus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 11 m 14.6 s |
| declination | -08 ° 55 ′ 20 ″ |
| Appearance | |
| Morphological type | SB (rs) b / Sy2 |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.0 likes |
| Angular expansion | 3.4 ′ × 1.6 ′ |
| Position angle | 145 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1241 group LGG 84 |
| Redshift | 0.013515 ± 0.000013 |
| Radial velocity | 4052 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(179 ± 12) · 10 6 ly (55.0 ± 3.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | January 10, 1785 |
| Catalog names | |
| NGC 1241 • PGC 11887 • MCG -02-09-011 • IRAS 03088-0906 • 2MASX J03111463-0855197 • Arp 304 • VV 334a • GC 654 • H II 286 • h 289/2510 • LDCE 225 NED008 • HOLM 68A | |
NGC 1241 is a bar-spiral galaxy with an active nucleus of the Hubble type SBb in the constellation Eridanus in the southern sky . It is around 179 million light years away from the Milky Way and has a diameter of around 185,000 light years . It probably forms a physically bound pair with NGC 1242 ( Arp 304 ). Together with NGC 1242, NGC 1247 , PGC 11824 and PGC 11937 , it forms the NGC 1241 group .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class Unclassified double galaxies .
The object was discovered on January 10, 1785 by the German-British astronomer Wilhelm Herschel .
The galaxy NGC 1241 (top left is NGC 1242) captured by GALEX .
NGC 1241 group ( LGG 84 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 1241 | PGC 11887 | 179 |
| NGC 1242 | PGC 11892 | 177 |
| NGC 1247 | PGC 11931 | 174 |
| PGC 11937 | Mrk 1071 | 174 |
| PGC 11824 | MCG-02-09-006 | 179 |
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
Web links
Commons : NGC 1241 - collection of images, videos, and audio files
