IC 4789
| Galaxy IC 4789 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 56 m 18.5 s |
| declination | -68 ° 34 ′ 02 ″ |
| Appearance | |
| Morphological type | SA (s) c: |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1.5 ′ × 0.7 ′ |
| Position angle | 174 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.014123 ± 0.000033 |
| Radial velocity | 4234 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(184 ± 13) x 10 6 ly (56.5 ± 4.0) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | August 27, 1900 |
| Catalog names | |
| IC 4789 • PGC 62582 • ESO 072-005 • IRAS 18509-6838 • 2MASX J18561849-6834012 • SGC 185059-6838.0 • GALEX ASC J185618.43-683401.1 | |
IC 4789 is a spiral galaxy of Hubble type Sc in the constellation Peacock on southern sky . It is estimated to be 184 million light years from the Milky Way and about 80,000 light years in diameter .
The galaxy IC 4787 is located in the same region of the sky .
The object was discovered by DeLisle Stewart on August 27, 1900 .