NGC 2881
| Galaxy NGC 2881 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Water snake |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 25 m 54.2 s |
| declination | -11 ° 59 ′ 38 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 1: 13.3 mag 2: 13.3 mag |
| Brightness (B-band) | 1: 14.1 mag 2: 14.1 mag |
| Angular expansion | 1: 1.1 / 0.9 2: 0.8 / 0.7 |
| Position angle | 1: 135 ° |
| Surface brightness | 1: 13.1 mag / arcmin² 2: 12.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.017012 ± 0.000067 |
| Radial velocity | 5100 ± 20 km / s |
|
Stroke distance v rad / H 0 |
(220 ± 15) · 10 6 ly (67.3 ± 4.7) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | February 9, 1886 |
| Catalog names | |
| NGC 2881 • PGC 26747 • MCG -02-24-021 • IRAS 09234-1146 • Arp 275 • VV 293 • | |
NGC 2881 is an interacting pair of galaxies in the constellation Aquarius. It is estimated to be 220 million light years from the Milky Way . The two galaxies are also known as NGC 2881-1 and NGC 2881-2 and form the interactive galaxy pair Arp 275 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class interacting double galaxies .
The object was discovered by Lewis A. Swift on February 9, 1886 .
Web links
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