IC 442
| Galaxy IC 442 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | giraffe |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 06 h 36 m 11.9 s |
| declination | + 82 ° 58 ′ 06 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 0.90 'x 0.9' |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.014223 ± 0.000033 |
| Radial velocity | 4264 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(197 ± 14) · 10 6 ly (60.5 ± 4.2) Mpc |
| history | |
| discovery | William F. Denning |
| Discovery date | November 9, 1890 |
| Catalog names | |
| IC 442 • UGC 3470 • PGC 19306 • CGCG 362-022 • 363-005 • MCG + 14-04-003 • 2MASX J06361228 + 8258088 • GALEX ASC J063610.91 + 825805.7 • LDCE 442 NED017 • KPG 113 | |
IC 442 is a merging galaxy in the constellation Giraffe in the northern sky . It is an estimated 197 million light years away from the Milky Way and about 50,000 light years across.
The object was discovered on November 9, 1890 by William Frederick Denning .