IC 690
| Galaxy IC 690 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | cups |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 24 m 20.6 s |
| declination | -08 ° 20 ′ 31 ″ |
| Appearance | |
| Morphological type | S. |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 0.9 ′ × 0.3 ′ |
| Position angle | 170 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.023019 ± 0.000087 |
| Radial velocity | (6901 ± 26) km / s |
|
Stroke distance v rad / H 0 |
(302 ± 21) · 10 6 ly (92.5 ± 6.5) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | May 13, 1893 |
| Catalog names | |
| IC 690 • PGC 170138 • 2MASX J11242059-0820305 • LDCE 0804 NED00 | |
IC 690 is a lenticular galaxy of the Hubble type S0-a in the constellation Becher. It is an estimated 302 million light years from the Milky Way .
The object was discovered on May 13, 1893 by the astronomer Stéphane Javelle .