Arp 325
| Galaxy Arp 325 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Aquarius |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 06 m 21.6 s |
| declination | -21 ° 04 ′ 21 ″ |
| Appearance | |
| Brightness (visual) | 14.5 mag |
| Angular expansion | 1.5 |
| Physical data | |
| Redshift | 0.059491 ± 0.000123 |
| Radial velocity | (17835 ± 37) km / s |
|
Stroke distance v rad / H 0 |
(800 ± 56) · 10 6 Lj (245.4 ± 17.2) Mpc |
| history | |
| Catalog names | |
| PGC 68034/35/36 • ESO 601- G018 • MCG -04-52-014 • Arp 325 • VV 167 • | |
Arp 325 is an interacting group of galaxies in the constellation Aquarius, which is an estimated 800 million light years from the Milky Way . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This group of galaxies belongs to the class chains of galaxies .
| designation |
α J2000.0 |
δ J2000.0 |
Morphological type | m V | Angular expansion | Distance ( million years ) |
|---|---|---|---|---|---|---|
| Arp 325a | 22 h 06 m 20.8 s | −21 ° 03 ′ 49 ″ | 18.1 | |||
| Arp 325b | 22 h 06 m 20.8 s | −21 ° 04 ′ 05 ″ | ||||
| Arp 325c | 22 h 06 m 21.6 s | −21 ° 04 ′ 24 ″ | 16.1 | |||
| Arp 325d | 22 h 06 m 22.4 s | −21 ° 04 ′ 32 ″ | ||||
| Arp 325e | 22 h 06 m 22.6 s | −21 ° 04 ′ 57 ″ | 17.9 |
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