PGC 50584
| Galaxy PGC 50584 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 10 m 06.9 s |
| declination | + 17 ° 36 ′ 57 ″ |
| Appearance | |
| Morphological type | SB (s) bc |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 1.2 ′ × 0.8 ′ |
| Position angle | 90 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.018226 ± 0.000150 |
| Radial velocity | (5464 ± 45) km / s |
|
Stroke distance v rad / H 0 |
(245 ± 17) · 10 6 ly (75.2 ± 5.3) Mpc |
| diameter | 90,000 ly |
| history | |
| Catalog names | |
| NGC 5490C • PGC 50584 • CGCG 103-100 • MCG + 03-36-069 • KUG 1407 + 178 • 2MASX J14100691 + 1736565 • Arp 79 • | |
PGC 50584 = Arp 79 is a bar-spiral galaxy of the Hubble type SB (s) bc in the constellation Bear Guardian in the northern sky . It is around 245 million light years away from the Milky Way and has a diameter of around 90,000 light years . The object is also unofficially called “ NGC 5490C ” because it is close to the galaxy NGC 5490 and an interaction between the two galaxies is being considered.
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with a large companion of high surface brightness on one arm (Arp catalog) .
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