NGC 2820
| Galaxy NGC 2820 |
|
|---|---|
|
|
| NGC 2820 with IC 2458 (appendix ru) | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 21 m 45.6 s |
| declination | + 64 ° 15 ′ 29 ″ |
| Appearance | |
| Morphological type | SB (s) c / pec |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 4.1 ′ × 0.4 ′ |
| Position angle | 62 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 2805 group WBL 218-001 LGG 173 |
| Redshift | 0.005250 ± 0.000020 |
| Radial velocity | (1574 ± 6) km / s |
|
Stroke distance v rad / H 0 |
(74 ± 5) · 10 6 ly (22.8 ± 1.6) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | April 3, 1791 |
| Catalog names | |
| NGC 2820 • UGC 4961 • PGC 26498 • CGCG 312-005 • MCG + 11-12-006 • IRAS 09177 + 6428 • 2MASX J09214556 + 6415288 • GC 1798 • H II 869 • h 576 • NVSS J092146 + 641526 • HOLM 124A • LDCE 635 NED003 | |
NGC 2820 is a barred spiral galaxy of the Hubble type SBc / P in the constellation Greater Bear in the northern sky . It is an estimated 74 million light years away from the Milky Way and has a diameter of about 85,000 ly. Together with NGC 2805 , NGC 2814 and IC 2458 , it forms the interactive galaxy quartet Holm 124 .
The object was discovered on April 3, 1791 by Wilhelm Herschel .
Web links
Commons : NGC 2820 - collection of images, videos, and audio files
