IC 4788
| Galaxy IC 4788 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 54 m 41.0 s |
| declination | -63 ° 27 ′ 09 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 15.3 mag |
| Brightness (B-band) | 16.0 mag |
| Angular expansion | 1.6 ′ × 0.2 ′ |
| Position angle | 12 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.013449 ± 0.000267 |
| Radial velocity | 4032 ± 80 km / s |
|
Stroke distance v rad / H 0 |
(176 ± 13) x 10 6 ly (53.9 ± 3.9) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | July 20, 1901 |
| Catalog names | |
| IC 4788 • PGC 62555 • ESO 104-021 • 2MASX J18544104-6327084 • | |
IC 4788 is a spiral galaxy of Hubble type Sc in the constellation Peacock on southern sky . It is estimated to be 176 million light years from the Milky Way and about 85,000 light years in diameter .
The galaxies NGC 6706 and IC 4781 are in the same region of the sky .
The object was discovered by DeLisle Stewart on July 20, 1901 .