NGC 2402
| Galaxy NGC 2402 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Small dog |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 07 h 30 m 47.2 s |
| declination | + 09 ° 39 ′ 02 ″ |
| Appearance | |
| Morphological type | 1: E? / AGN 2: S |
| Brightness (visual) | 1: 14.1 mag 2: 15.2 mag |
| Brightness (B-band) | 1: 15.1 mag 2: 16.0 mag |
| Angular expansion | 1: 0.8 / 0.8 2: 0.7 / 0.5 |
| Position angle | 2: 95 ° |
| Surface brightness | 1: 13.7 mag / arcmin² 2: 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.017679 ± 0.000107 0.017435 ± 0.000160 |
| Radial velocity | 5300 ± 32 km / s 5227 ± 48 km / s |
|
Stroke distance v rad / H 0 |
(232 ± 16) x 10 6 ly (71.0 ± 5.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 11, 1784 |
| Catalog names | |
| NGC 2402 • UGC 3891 • PGC 21176/200236 • CGCG 057-015 • MCG + 02-19-04 • GC 1540 • H III 19 • h 453 • | |
NGC 2402 is a pair of galaxies in the constellation Little Dog in the northern sky . It is around 230 million light years from the Milky Way .
The object was discovered on March 11, 1784 by Wilhelm Herschel as an object.