IC 17
| Galaxy IC 17 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 28 m 29.8 s |
| declination | + 02 ° 38 ′ 55 ″ |
| Appearance | |
| Morphological type | Sbc? |
| Brightness (visual) | 15.1 mag |
| Brightness (B-band) | 15.9 mag |
| Angular expansion | 0.50 x 0.5 |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.014400 ± 0.000097 |
| Radial velocity | 4317 ± 29 km / s |
|
Stroke distance v rad / H 0 |
(197 ± 14) · 10 6 ly (60.5 ± 4.3) Mpc |
| diameter | 20,000 ly |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | August 19, 1892 |
| Catalog names | |
| IC 17 • PGC 1753 • CGCG 383-025 • MCG + 00-02-044 • | |
IC 17 is a spiral galaxy of Hubble type Sbc in the constellation whale south of the ecliptic . It is around 197 million light years away from the Milky Way and has a diameter of around 20,000 light years .
The galaxy was discovered on August 19, 1892 by Stéphane Javelle .