Arp 312
| Galaxy Arp 312 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Hercules |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 16 h 49 m 49.4 s |
| declination | + 46 ° 42 ′ 57 ″ |
| Appearance | |
| Brightness (visual) | 15.4 mag |
| Physical data | |
| Redshift | 0.038800 |
| Radial velocity | 11632 km / s |
|
Stroke distance v rad / H 0 |
(528 ± 37) · 10 6 ly (161.8 ± 11.3) Mpc |
| history | |
| Catalog names | |
| PGC 59071-73 • CGCG 252-004 • MCG + 08-31-04 / 05/06 • Arp 312 • VV 197 • HOLM 758 | |
Arp 312 is an interacting galaxy trio in the constellation Hercules in the northern sky , which is an estimated 528 million light years from the Milky Way . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy triplet belongs to the class of galaxy groups .
| designation |
α J2000.0 |
δ J2000.0 |
Morphological type | m V | Angular expansion | Position angle | Distance ( million years ) |
|---|---|---|---|---|---|---|---|
| MCG + 08-31-04 | 16 h 49 m 45.7 s | + 46 ° 42 ′ 29 ″ | 16 | 0 ′, 47 × 0 ′, 27 | |||
| MCG + 08-31-05 | 16 h 49 m 48.5 s | + 46 ° 43 ′ 05 ″ | 15.4 | 0 ′, 4 × 0 ′, 4 | 528 | ||
| MCG + 08-31-06 | 16 h 49 m 50.2 s | + 46 ° 42 ′ 50 ″ | 15.7 | 0 ′, 3 × 0 ′, 3 |
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