IC 4447
| Galaxy IC 4447 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Bear keeper |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 29 m 18.0 s |
| declination | + 30 ° 49 ′ 56 ″ |
| Appearance | |
| Morphological type | SB0-a |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.20 × 0.8 |
| Position angle | 175 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.014277 ± 0.000103 |
| Radial velocity | 4280 ± 31 km / s |
|
Stroke distance v rad / H 0 |
(194 ± 14) · 10 6 ly (59.6 ± 4.2) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | July 9, 1896 |
| Catalog names | |
| IC 4447 • UGC 9306 • PGC 51754 • CGCG 163-066 • MCG + 05-34-056 • 2MASX J14291797 + 3049559 • CG 1227 | |
IC 4447 is a lenticular galaxy of the Hubble type SB0-a in the constellation Bear Guardian in the northern sky . It is estimated to be 194 million light years away from the Milky Way and has a diameter of about 70,000 ly.
In the same area of the sky there are u. a. the galaxies NGC 5639 , NGC 5642 , NGC 5653 , IC 1012 .
The object was discovered by Stéphane Javelle on July 9, 1896 .