IC 1688
| Galaxy IC 1688 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | fishes |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 23 m 28.1 s |
| declination | + 33 ° 04 ′ 59 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 15.0 mag |
| Brightness (B-band) | 16.0 mag |
| Angular expansion | 0.40 x 0.3 |
| Position angle | 40 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.016755 +/- 0.000090 |
| Radial velocity | 5023 +/- 27 km / s |
|
Stroke distance v rad / H 0 |
(231 ± 16) x 10 6 ly (70.8 ± 5.0) Mpc |
| history | |
| discovery | Stephane Javelle |
| Discovery date | November 29, 1899 |
| Catalog names | |
| IC 1688 • PGC 169774 • 2MASX J01232801 + 3304592 • GALEX J012328.21 + 330502.7 • LEDA 169774 | |
IC 1688 is an elliptical dwarf galaxy of the Hubble type E3 in the constellation Pisces on the ecliptic . It is estimated to be 231 million light-years away from the Milky Way and has a diameter of about 25,000 light years
. a. the galaxies NGC 504 , IC 1685 , IC 1689 , IC 1690 .
The object was discovered by Stéphane Javelle on November 29, 1899 .