Arp 261
| Galaxy Arp 261 |
|
|---|---|
 |
|
| Image of Arp 261 combined from VLT images | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 49 m 32.7 s |
| declination | -10 ° 09 ′ 47 ″ |
| Appearance | |
| Morphological type | DBL SYS |
| Brightness (visual) | 13.4 mag |
| Angular expansion | 3.4 ′ × 2 ′ |
| Physical data | |
| Redshift | 0.006158 ± 0.000017 |
| Radial velocity | (1846 ± 5) km / s |
|
Stroke distance v rad / H 0 |
(81 ± 6) · 10 6 ly (24.8 ± 1.7) Mpc |
| history | |
| Catalog names | |
| PGC 52935/52940 • MCG -02/38/16/17 • Arp 261 • VV 140 • DDO 197 | |
Arp 261 is an interacting pair of galaxies in the constellation Libra . The distance of the object is estimated to be about 80 million light years . Inside Arp 261, SN 1995N , a type IIn supernova, was discovered on May 5, 1995 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of galaxies with irregular clusters .
Web links
Commons : Arp 261 - collection of images, videos and audio files
- ESO: A Curious Pair of Galaxies March 16, 2009
- astronews.com: Picture of the day November 15, 2012
- ARP ATLAS OF PECULIAR GALAXIES
- Seligman Arp
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