NGC 2856
| Galaxy NGC 2856 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 24 m 16.0 s |
| declination | + 49 ° 14 ′ 57 ″ |
| Appearance | |
| Morphological type | S? / HII |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.1 ′ × 0.5 ′ |
| Position angle | 134 ° |
| Surface brightness | 12.4 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 221-002 |
| Redshift | 0.008799 ± 0.000063 |
| Radial velocity | 2638 ± 19 km / s |
|
Stroke distance v rad / H 0 |
(119 ± 8) · 10 6 ly (36.5 ± 2.6) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 9, 1788 |
| Catalog names | |
| NGC 2856 • UGC 4997 • PGC 26648 • CGCG 238-047 • MCG + 08-17-093 • IRAS 09208 + 4927 • KUG 0920 + 494B • 2MASX J09241600 + 4914567 • Arp 285 • GC 1836 • H III 713 • h 591 • • NVSS J092416 + 491456 • LDCE 641 NED002 | |
NGC 2856 is a spiral galaxy with extensive star formation regions of the Hubble type Sbc in the constellation Great Bear in the northern sky . It is estimated to be 119 million light years away from the Milky Way and has a diameter of about 35,000 ly. Together with NGC 2854 , it forms the bound galaxy pair Arp 285 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy pair belongs to the class double galaxies with inflow and attraction .
The galaxy NGC 2857 is still located in the same area of the sky .
The object was discovered by Wilhelm Herschel on March 9, 1788 .
Web links
Commons : NGC 2856 - 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