IC 643
| Galaxy IC 643 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 10 h 49 m 27.2 s |
| declination | + 12 ° 12 ′ 04 ″ |
| Appearance | |
| Morphological type | S0 / a |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 0.6 ′ × 0.2 ′ |
| Position angle | 75 ° |
| Surface brightness | 11.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.023380 ± 0.000153 |
| Radial velocity | (7009 ± 46) km / s |
|
Stroke distance v rad / H 0 |
(309 ± 22) x 10 6 ly (94.7 ± 6.7) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | March 31, 1892 |
| Catalog names | |
| IC 643 • PGC 32392 • CGCG 066-030 • 2MASX J10492718 + 1212041 • | |
IC 643 is a lenticular galaxy of the Hubble type S0 / a in the constellation Leo. It is estimated to be 267 million light years from the Milky Way .
The object was discovered by Stéphane Javelle on March 31, 1892 .