IC 1639
| Galaxy IC 1639 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 11 m 46.5 s |
| declination | -00 ° 39 ′ 52 ″ |
| Appearance | |
| Morphological type | cE / P |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 0.9 ′ × 0.8 ′ |
| Position angle | 100 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.017949 ± 0.000040 |
| Radial velocity | (5381 ± 12) km / s |
|
Stroke distance v rad / H 0 |
(243 ± 17) · 10 6 ly (74.6 ± 5.2) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | December 14, 1903 |
| Catalog names | |
| IC 1639 • UGC 750 • PGC 4292 • CGCG 385-023 • MCG + 00-04-031 • 2MASX J01114656-0039520 • Mrk 562 • LDCE 0066 NED008 | |
IC 1639 is an elliptical galaxy of Hubble type cE in the constellation Cetus south of the celestial equator . It is estimated to be 243 million light years away from the Milky Way and has a diameter of around 65,000 ly. Together with IC 1640 , it probably forms a gravitationally bound duo. In the same area of the sky are u. a. the galaxies NGC 426 , NGC 429 , NGC 430 , IC 1643 .
The object was discovered by Stéphane Javelle on December 14, 1903 .