NGC 2820
Galaxy NGC 2820 |
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NGC 2820 with IC 2458 (appendix ru) | |
AladinLite | |
Constellation | Big Bear |
Position equinox : J2000.0 , epoch : J2000.0 |
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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