NGC 520
Galaxy NGC 520 |
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The pair of galaxies NGC 520 imaged by the Hubble Space Telescope | |
AladinLite | |
Constellation | fishes |
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 |
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