IC 2142
| Galaxy IC 2142 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Table Mountain |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 05 h 33 m 09.1 s |
| declination | -78 ° 01 ′ 10 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 14.7 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.80 'x 0.4' |
| Position angle | 31 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.005851 ± 0.000150 |
| Radial velocity | 1754 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(70 ± 5) · 10 6 ly (21.4 ± 1.6) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | December 18, 1900 |
| Catalog names | |
| IC 2142 • PGC 17430 • ESO 016-007 • IRAS F05357-7803 • 2MASX J05330919-7801098 • 2MASS J05330920-7801096 | |
IC 2142 is a spiral dwarf galaxy of the Hubble type Sc in the constellation Table Mountain in the southern sky . It is estimated to be 70 million light years away from the Milky Way and about 15,000 light years in diameter.
The object was discovered on December 18, 1900 by the American astronomer DeLisle Stewart .