IC 4939
| Galaxy IC 4939 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 07 m 11.0 s |
| declination | -60 ° 44 ′ 20 ″ |
| Appearance | |
| Morphological type | Sc? |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 1.30 'x 0.6' |
| Position angle | 158 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.012399 ± 0.000033 |
| Radial velocity | 3717 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(163 ± 11) · 10 6 ly (49.9 ± 3.5) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | August 15, 1901 |
| Catalog names | |
| IC 4939 • PGC 64131 • ESO 143-008 • IRAS F20030-6053 • GALEX ASC J200711.09-604420.8 | |
IC 4939 is a spiral galaxy of Hubble type Sc in the constellation Peacock on southern sky . It is an estimated 163 million light-years away from the Milky Way and about 65,000 light-years across.
The galaxies NGC 6860 , IC 4936 , IC 4938 are located in the same area of the sky .
The object was discovered by DeLisle Stewart on August 15, 1901 .