NGC 520
| Galaxy NGC 520 |
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| The pair of galaxies NGC 520 imaged by the Hubble Space Telescope | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 24 m 35.1 s |
| declination | + 03 ° 47 ′ 33 ″ |
| Appearance | |
| Morphological type | Pec; HII Sbrst |
| Brightness (visual) | 11.3 mag |
| Brightness (B-band) | 12.2 mag |
| Angular expansion | 3.4 ′ × 1.7 ′ |
| Position angle | 130 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 020 |
| Redshift | 0.007609 ± 0.000010 |
| Radial velocity | (2281 ± 3) km / s |
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Stroke distance v rad / H 0 |
(105 ± 8) x 10 6 ly (32.2 ± 2.3) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | December 13, 1784 |
| Catalog names | |
| NGC 520 • UGC 966 • PGC 5193 • CGCG 411-050 • MCG + 01-04-052 • IRAS 01219 + 0331 • 2MASX J01243507 + 0347326 • Arp 157 • VV 231 • GC 303 • H III 253 • h 116 • KCPG 31B | |
NGC 520 = Arp 157 is a colliding galaxy pair in the constellation Pisces and is approximately 105 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 of galaxies with internal absorption .
The galaxy NGC 520 was discovered on December 13, 1784 by the German-British astronomer William Herschel .
Web links
Commons : NGC 520 - collection of images, videos, and audio files
- Hubble Space Telescope
- The Colliding Galaxies of NGC 520 - Astronomy Picture of the Day from September 12, 2005 (English).
- Capella Observatory
- GoBlack
- 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