IC 4781
| Galaxy IC 4781 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 51 m 37.6 s |
| declination | -62 ° 47 ′ 33 ″ |
| Appearance | |
| Morphological type | (R) SB (r) 0 ^ + |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.9 ′ × 0.5 ′ |
| Position angle | 2 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.015724 ± 0.000150 |
| Radial velocity | 4714 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(206 ± 15) · 10 6 ly (63.3 ± 4.5) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | July 20, 1901 |
| Catalog names | |
| IC 4781 • PGC 62505 • ESO 104-018 • IRAS F18469-6251 • 2MASX J18513762-6247333 • LDCE 1323 NED046 | |
IC 4781 is a lenticular galaxy of the Hubble type S0 / a in the constellation Peacock in the southern sky . It is an estimated 206 million light years from the Milky Way and about 55,000 light years across .
The galaxies IC 4771 , IC 4779 , IC 4784 , IC 4788 are located in the same region of the sky .
The object was discovered by DeLisle Stewart on July 20, 1901 .