UGC 12891
| Galaxy Arp 249 / UGC 12891 |
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|---|---|
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| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 00 m 19.6 s |
| declination | + 22 ° 59 ′ 31 ″ |
| Appearance | |
| Morphological type | DBL SYS |
| Brightness (visual) | 15.1 mag |
| Angular expansion | 1.1 ′ × 0.7 ′ |
| Physical data | |
| Redshift | 0.038997 ± 0.000103 |
| Radial velocity | (11691 ± 31) km / s |
|
Stroke distance v rad / H 0 |
(530 ± 37) · 10 6 Lj (162.4 ± 11.4) Mpc |
| history | |
| Catalog names | |
| UGC 12891 • PGC 25/200388 • CGCG 477-037 / 478-009 • MCG + 04-01-007 • Arp 249 • VV 186 • IV Zw 177 NED02 | |
Arp 249 = UGC 12891 is an interacting galaxy pair in the constellation Pegasus. It is estimated to be 530 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 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