NGC 7318B
| Galaxy NGC 7318B |
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|---|---|
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| Image of Stephan's quintet captured by the Hubble Space Telescope . Below is NGC 7317 , a little to the right of the center of the picture the two galaxies NGC 7318A (below) and NGC 7318B (above), above right NGC 7319 and to the left of it NGC 7320 . | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 22 h 35 m 58.4 s |
| declination | + 33 ° 57 ′ 57 ″ |
| Appearance | |
| Morphological type | SB (s) bc pec |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.6 ′ × 1.1 ′ |
| Position angle | 99 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | Stephan's quintet |
| Redshift | (19260 ± 80) · 10 −6 |
| Radial velocity | (5774 ± 24) km / s |
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Stroke distance v rad / H 0 |
(267 ± 19) · 10 6 ly (82.0 ± 5.8) Mpc |
| history | |
| discovery | Edouard J.-M. Stephan |
| Discovery date | September 23, 1876 |
| Catalog names | |
| NGC 7318B • UGC 12100 • PGC 69263 • CGCG 514-062 • MCG + 06-49-040 • Arp 319 • HCG 92B • VV 288e • GC 6062 • NPM1G: +33.0465 | |
NGC 7318B is a barred spiral galaxy in the constellation Pegasus , approximately 300 million light years from the Milky Way . NGC 7318B is a member of the Stephans Quintett galaxy group . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This group of galaxies belongs to the class of galaxies .
NGC 7318 was discovered on September 23, 1876 by the French astronomer Édouard Jean-Marie Stephan .
Web links
- Sonic boom in space
- Hubble Space Telescope
- SIMBAD Astronomical Database
- 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