IC 22
| Galaxy IC 22 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 29 m 33.2 s |
| declination | -09 ° 04 ′ 51 ″ |
| Appearance | |
| Morphological type | S0 / a |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.6 mag |
| Angular expansion | 0.70 '× 0.3' |
| Position angle | 45 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.020260 ± 0.000087 |
| Radial velocity | 6074 ± 26 km / s |
|
Stroke distance v rad / H 0 |
(274 ± 19) x 10 6 ly (84.1 ± 5.9) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | September 14, 1892 |
| Catalog names | |
| IC 22 • PGC 1815 • MCG -02-02-027 • 2MASX J00293318-0904510 • GALEX ASC J002933.14-090450.2 • LDCE 23 NED002 | |
IC 22 is an elliptical galaxy of the Hubble type E / S0 in the constellation Whale south of the ecliptic . It is estimated to be 274 million light years from the Milky Way and about 55,000 light years in diameter.
The object was discovered by Stéphane Javelle on September 14, 1892 .