IC 401
| Galaxy IC 401 |
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|---|---|
![IC 401 [1]](https://de.wikipedia.org/wiki/Datei:IC_401_DSS.jpg)
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| IC 401 | |
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 05 h 04 m 19.64 s |
| declination | -10 ° 04 ′ 35.5 ″ |
| Appearance | |
| Morphological type | SB (rs) b? / LINER ? |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.3 mag |
| Angular expansion | 1.7 ′ × 0.6 ′ |
| Position angle | 57 ° |
| Surface brightness | 12.4 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1752 group NGC 1779 group LGG 126 |
| Redshift | 0.011194 ± 0.000010 |
| Radial velocity | 3356 ± 3 km / s |
|
Stroke distance v rad / H 0 |
(145 ± 10) · 10 6 ly (44.4 ± 3.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | January 30, 1786 |
| Catalog names | |
| IC 401 • PGC 16672 • MCG -02-13-040 • IRAS 05019-1008 • 2MASX J05041962-1004359 • Mrk 1092 • HIPASS J0504-10 • NVSS J050420-100426 | |
IC 401 is a lens-shaped galaxy with an active nucleus of the Hubble type SB0 / a in the constellation Eridanus in the southern sky . It is estimated to be 145 million light years from the Milky Way and about 75,000 light years in diameter. The galaxy is considered a member of the NGC 1752 group ( LGG 126 ).
In the same area of the sky is u. a. the galaxy NGC 1779 .
The object was discovered by Wilhelm Herschel on January 30, 1786 .