IC 4770
| Galaxy IC 4770 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 48 m 10.3 s |
| declination | -63 ° 23 ′ 00 ″ |
| Appearance | |
| Morphological type | (R) SAB (r) 0 / a: |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.80 / 0.6 ' |
| Position angle | 65 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.014470 ± 0.000033 |
| Radial velocity | 4338 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(189 ± 13) · 10 6 ly (58.1 ± 4.1) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | July 20, 1901 |
| Catalog names | |
| IC 4770 • PGC 62439 • ESO 104-013 • 2MASX J18481033-6323003 • | |
IC 4770 is a spiral galaxy of the Hubble type Sa in the constellation Peacock in the southern sky . It is an estimated 189 million light years from the Milky Way and about 45,000 light years across .
The galaxies IC 4765 , IC 4766 , IC 4767 , IC 4771 are in the same region of the sky .
The object was discovered by DeLisle Stewart on July 20, 1901 .