NGC 2998
| Galaxy NGC 2998 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 48 m 43.6 s |
| declination | + 44 ° 04 ′ 53 ″ |
| Appearance | |
| Morphological type | SAB (rs) c / LINER |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2 ′, 7 × 1 ′, 2 |
| Position angle | 53 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.015958 ± 0.000007 |
| Radial velocity | 4784 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(214 ± 15) · 10 6 ly (65.7 ± 4.6) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | January 15, 1788 |
| Catalog names | |
| NGC NGC 2998 • UGC 5250 • PGC 28196 • CGCG 210-036 • MCG + 07-20-51 • IRAS 09455 + 4418 • KUG 0945 + 443 • 2MASX J09484363 + 4404526 • GC 1924 • H II 717 • h 638 • LDCE 680 NED001 | |
NGC 2998 is a barred spiral galaxy with an active galactic nucleus from Hubble type SBc in the constellation Ursa Major at the northern sky . It is estimated to be 214 million light-years away from the Milky Way and has a diameter of around 170,000 ly
. a. the galaxies NGC 3005 , NGC 3006 , NGC 3008 , NGC 3009 .
The object was discovered on January 15, 1788 by the astronomer William Herschel with a 48 cm telescope.
Web links
Commons : NGC 2998 - collection of images, videos, and audio files
