IC 396
| Galaxy IC 396 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | giraffe |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 04 h 57 m 59.1 s |
| declination | + 68 ° 19 ′ 24 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2.10 × 1.5 |
| Position angle | 85 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.002969 ± 0.000030 |
| Radial velocity | 890 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(46 ± 3) x 10 6 ly (14.0 ± 1.0) Mpc |
| history | |
| discovery | William Denning |
| Discovery date | October 19, 1890 |
| Catalog names | |
| IC 396 • UGC 3203 • PGC 16423 • MCG + 11-07-002 • IRAS 04527 + 6814 • 2MASX J04575911 + 6819249 • | |
IC 396 is a galaxy of Hubble type S? in the constellation Giraffe in the north star sky . It is estimated to be 46 million light years from the Milky Way and about 30,000 ly in diameter.
The object was discovered on October 19, 1890 by the astronomer William Frederick Denning .