IC 3442
| Galaxy IC 3442 |
|
|---|---|
![with LEDA 169477 (ro) & LEDA 169473 (ru) [1]](https://de.wikipedia.org/wiki/Datei:IC3442_-_SDSS_DR14.jpg)
|
|
| with LEDA 169477 (ro) & LEDA 169473 (ru) | |
| AladinLite | |
| Constellation | Berenike's hair |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 31 m 20.193 s |
| declination | + 14 ° 06 ′ 54.74 ″ |
| Appearance | |
| Morphological type | dE0: |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 0.9 ′ × 0.8 ′ |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo cluster (??) |
| Redshift | 0.020714 ± 0.000167 |
| Radial velocity | 6210 ± 50 km / s |
|
Stroke distance v rad / H 0 |
(275 ± 19) x 10 6 ly (84.4 ± 5.9) Mpc |
| history | |
| discovery | Royal H. Frost |
| Discovery date | May 10, 1904 |
| Catalog names | |
| IC 3442 • PGC 41435 • CGCG 070-144 • MCG + 02-32-111 • VCC 1355 • GALEX ASC J123120.38 + 140654.9 • NSA 141563 • WISEA J123120.20 + 140655.5 • VPC 810 | |
IC 3442 is an elliptical galaxy from the Hubble type E1 in the constellation Coma Berenices the northern sky . It is estimated to be 275 million light-years from the Milky Way and about 70,000 light-years across. The galaxy is listed under catalog number VVC 1355 as a member of the Virgo galaxy cluster, some 54 million light years away .
In the same area of the sky are u. a. the galaxies NGC 4501 , IC 3432 , IC 3476 , IC 3478 .
The object was discovered by Royal Harwood Frost on May 10, 1904 .