NGC 833
| Galaxy NGC 833 |
|
|---|---|
|
|
| Image of the galaxies NGC 833 (right) and NGC 835 (left) of the Hubble Space Telescope | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 09 m 20.8 s |
| declination | -10 ° 07 ′ 59 ″ |
| Appearance | |
| Morphological type | (R ') Sa: / pec / Sy2 / LINER |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.5 ′ × 0.7 ′ |
| Position angle | 85 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 49 |
| Redshift | 0.012889 ± 0.000033 |
| Radial velocity | (3864 ± 10) km / s |
|
Stroke distance v rad / H 0 |
(173 ± 12) · 10 6 ly (52.9 ± 3.7) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | November 28, 1785 |
| Catalog names | |
| NGC 833 • PGC 8225 • MCG -02-06-030 • 2MASX J02092086-1007591 • Arp 318 • HCG 16B • GC 495 • H II 482 • h 199/2463 • | |
NGC 833 is a spiral galaxy with an active nucleus of the Hubble type Sa in the constellation Whale south of the celestial equator . It is an estimated 173 million light years from the Milky Way and about 75,000 light years in diameter. Together with NGC 835 , NGC 838, and NGC 839 , it forms a group of galaxies that is cataloged as Hickson Compact Group 16 ( Arp 318 ).
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 object was discovered by William Herschel on November 28, 1785 .
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
Web links
Commons : NGC 833 - collection of images, videos, and audio files
