Arp 2
| Galaxy Arp 2 / UGC 10310 |
|
|---|---|
|
|
| Hubble Space Telescope | |
| AladinLite | |
| Constellation | Hercules |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 16 h 16 m 18.3 s |
| declination | + 47 ° 02 ′ 47 ″ |
| Appearance | |
| Morphological type | SB (s) w |
| Brightness (visual) | 13.2 mag |
| Angular expansion | 2.8 ′ × 2.2 ′ |
| Physical data | |
| Redshift | 0.002388 ± 0.000004 |
| Radial velocity | (716 ± 1) km / s |
|
Stroke distance v rad / H 0 |
(39 ± 3) x 10 6 ly (12.03 ± 0.85) Mpc |
| history | |
| Catalog names | |
| UGC 10310 • PGC 57678 • CGCG 251-004 • MCG + 08-30-002 • Arp 2 • | |
UGC 10310 = Arp 2 is a bar-spiral galaxy of the Hubble type SBm in the constellation Hercules . It is about 39 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 spiral galaxies with low surface brightness .
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