NGC 7317
| Galaxy NGC 7317 |
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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 image are 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 51.9 s |
| declination | + 33 ° 56 ′ 42 ″ |
| Appearance | |
| Morphological type | E4 |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 0.4 ′ × 0.4 ′ |
| Surface brightness | 11.7 mag / arcmin² |
| Physical data | |
| Affiliation | Stephan's quintet |
| Redshift | 0.022012 +/- 0.000087 |
| Radial velocity | (6599 ± 26) km / s |
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Stroke distance v rad / H 0 |
(304 ± 21) · 10 6 ly (93.3 ± 6.5) Mpc |
| history | |
| discovery | Edouard J.-M. Stephan |
| Discovery date | September 23, 1876 |
| Catalog names | |
| NGC 7317 • PGC 69256 • CGCG 514-060 • MCG + 06-49-038 • 2MASX J22355187 + 3356415 • Arp 319 • HCG 92E • VV 288d • GC 6061 • Stephan VIII, LDCE 1520 NED051 | |
NGC 7317 is an elliptical galaxy in the constellation Pegasus , approximately 300 million light years from the Milky Way . NGC 7317 is a member of the Stephans Quintet 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 .
The galaxy NGC 7317 was discovered on September 23, 1876 by the French astronomer Édouard Jean-Marie Stephan .
Web links
Commons : NGC 7317 - collection of images, videos, and audio files
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