IC 642
| Galaxy IC 642 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 10 h 48 m 08.1 s |
| declination | + 18 ° 11 ′ 19 ″ |
| Appearance | |
| Morphological type | E? |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.3 ′ × 1.3 ′ |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.020174 ± 0.000077 |
| Radial velocity | (6048 ± 23) km / s |
|
Stroke distance v rad / H 0 |
(267 ± 19) · 10 6 ly (81.8 ± 5.7) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | April 12, 1888 |
| Catalog names | |
| IC 642 • UGC 5905 • PGC 32278 • CGCG 095-022 • MCG + 03-28-010 • 2MASX J10480814 + 1811189 • | |
IC 642 is an elliptical galaxy of Hubble type E in the constellation Leo. It is estimated to be 267 million light years from the Milky Way .
The object was discovered by Lewis Swift on April 12, 1888 .