NGC 2101
| Galaxy NGC 2101 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | painter |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 05 h 46 m 24.2 s |
| declination | -52 ° 05 ′ 19 ″ |
| Appearance | |
| Morphological type | IB (s) m / pec |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 2 ′ × 1.3 ′ |
| Position angle | 85 ° |
| Surface brightness | 14.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.004016 +/- 0.000007 |
| Radial velocity | 1204 +/- 2 km / s |
|
Stroke distance v rad / H 0 |
(45 ± 3) x 10 6 ly (13.7 ± 1.0) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | January 9, 1837 |
| Catalog names | |
| NGC 2101 • PGC 17793 • ESO 205-001 • IRAS 05451-5206 • 2MASX J05462417-5205188 • SGC 054515-5206.4 • HIPASS J0546-52 | |
NGC 2101 is an irregular galaxy of the Hubble type IBm / P in the constellation Pictor in the southern sky . It is estimated to be 45 million light-years away from the Milky Way and has a diameter of about 25,000 ly.
In the same area of the sky is the galaxy NGC 2104 .
The object was discovered by John Herschel on January 9, 1837 .