NGC 73
| Galaxy data from NGC 73 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 18 m 39.0 s |
| declination | -15 ° 19 ′ 20 ″ |
| Appearance | |
| Morphological type | SAB (rs) bc: |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.7 ′ × 1.2 ′ |
| Position angle | 145 ° |
| Surface brightness | 14.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.025891 ± 0.000033 |
| Radial velocity | 7762 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(349 ± 24) x 10 6 ly (107.0 ± 7.5) Mpc |
| history | |
| discovery | Lewis A. Swift |
| Discovery date | October 21, 1886 |
| Catalog names | |
| NGC 73 • PGC 1211 • MCG -03-01-026 • 2MASX J00183897-1519200 • NPM1G -15.0014 | |
NGC 73 is a bar-spiral galaxy of the Hubble type SAB (rs) bc: in the constellation Whale near the celestial equator . It is about 350 million light years from the Milky Way and is estimated to be 160,000 light years in diameter.
discovery
The galaxy NGC 73 was discovered on October 21, 1886 by the American astronomer Lewis A. Swift .