NGC 2978
| Galaxy NGC 2978 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | sextant |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 43 m 16.8 s |
| declination | -09 ° 44 ′ 45 ″ |
| Appearance | |
| Morphological type | (R ') SAB (rs) bc? / HII |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.1 ′ × 0.9 ′ |
| Position angle | 85 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.006011 ± 0.000037 |
| Radial velocity | 1802 ± 11 km / s |
|
Stroke distance v rad / H 0 |
(72 ± 5) x 10 6 ly (22.2 ± 1.6) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | March 10, 1886 |
| Catalog names | |
| NGC 2978 • PGC 27808 • MCG -01-25-029 • IRAS 09408-0931 • 2MASX J09431675-0944443 • NVSS J094316-094444 | |
NGC 2978 is a spiral galaxy with extensive star formation regions of the Hubble type Sbc in the constellation Sextant in the southern sky . It is estimated to be 72 million light-years away from the Milky Way and has a diameter of about 25,000 ly
. a. the galaxies NGC 2979 and NGC 2980 .
The object was discovered on March 10, 1886 by the astronomer Lewis Swift .