IC 1643
| Galaxy IC 1643 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 12 m 08.6 s |
| declination | -00 ° 24 ′ 37 ″ |
| Appearance | |
| Morphological type | Sa / LINER |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.8 ′ × 0.8 ′ |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.018259 ± 0.000068 |
| Radial velocity | 5474 ± 20 km / s |
|
Stroke distance v rad / H 0 |
(248 ± 17) · 10 6 ly (75.9 ± 5.3) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | December 18, 1897 |
| Catalog names | |
| IC 1643 • PGC 4328 • CGCG 385-025 • MCG + 00-04-033 • 2MASX J01120864-0024372 • GALEX ASC J011208.64-002435.2 | |
IC 1643 is a spiral galaxy with an active nucleus of the Hubble type S in the constellation Whale south of the ecliptic . It is estimated to be 248 million light years away from the Milky Way and has a diameter of around 60,000 ly.
In the same area of the sky are the galaxies NGC 426 , NGC 429 , IC 1639 , IC 1640 , among others .
The object was discovered by Stéphane Javelle on December 18, 1897 .