Arp 177
| Galaxy Arp 177 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Bear keeper |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 55 m 47.6 s |
| declination | + 24 ° 35 ′ 35 ″ |
| Appearance | |
| Brightness (visual) | 16.3 mag |
| Angular expansion | 0.6 ′ × 0.3 ′ |
| Physical data | |
| Redshift | 0.033313 ± 0.000834 |
| Radial velocity | (9987 ± 250) km / s |
|
Stroke distance v rad / H 0 |
(449 ± 33) · 10 6 ly (137.8 ± 10.2) Mpc |
| history | |
| Catalog names | |
| PGC 53371/72 • MCG + 04-35-16 / 17 • Arp 177 • VV 840 • | |
Arp 177 is an interacting pair of galaxies in the Bear Keeper constellation , about 450 million light years from the Milky Way. Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies with narrow opposing arms .
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