IC 4888
| Galaxy IC 4888 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | telescope |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 19 h 44 m 52.2 s |
| declination | -54 ° 27 ′ 24 ″ |
| Appearance | |
| Morphological type | SA0- |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1 ′ × 0.7 ′ |
| Position angle | 93 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.008499 ± 0.000150 |
| Radial velocity | 2548 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(112 ± 8) · 10 6 ly (34.2 ± 2.5) Mpc |
| history | |
| discovery | Royal H. Frost |
| Discovery date | August 31, 1904 |
| Catalog names | |
| IC 4888 • PGC 63609 • ESO 185-012 • 2MASX J19445224-5427238 • SGC 194054-5434.6 • GALEX ASC J194452.24-542723.7 | |
IC 4888 is an elliptical galaxy of the Hubble type E / S0 in the constellation Telescope in the southern sky . It is estimated to be 112 million light years away from the Milky Way and has a diameter of around 30,000 ly. Together with IC 4889 , it forms a gravitationally bound galaxy pair.
The object was discovered by Royal Harwood Frost on August 31, 1904 .