Arp 251
| Galaxy Arp 251 |
|
|---|---|
|
|
| Image taken with the Hubble Space Telescope | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 53 m 48.4 s |
| declination | -13 ° 51 ′ 25 ″ |
| Appearance | |
| Brightness (visual) | 15.5 mag |
| Angular expansion | 0.8 ′ × 0.4 ′ |
| Physical data | |
| Redshift | 0.076276 ± 0.000080 |
| Radial velocity | (22867 ± 24) km / s |
| history | |
| Catalog names | |
| PGC 3163 • MCG -02-03-037 • IRAS F00512-1407 • Arp 251 • VV 674 • | |
Arp 251 is an interacting galaxy triplet in the constellation Whale. Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies showing signs of splitting .
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