IC 3556
| Galaxy IC 3556 |
|
|---|---|
|
|
| IC 3559, IC 3556 (middle), NGC 4558 | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 35 m 58.4 s |
| declination | + 26 ° 57 ′ 58 ″ |
| Appearance | |
| Morphological type | S0 / LINER |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.6 mag |
| Angular expansion | 0.7 ′ × 0.3 ′ |
| Position angle | 170 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.024670 ± 0.000097 |
| Radial velocity | 7396 ± 29 km / s |
|
Stroke distance v rad / H 0 |
(330 ± 23) · 10 6 ly (101.3 ± 7.1) Mpc |
| history | |
| discovery | Max Wolf |
| Discovery date | March 23, 1903 |
| Catalog names | |
| IC 3556 • UGC 07765 NOTES03 • PGC 42005 • CGCG 159-025 • MCG + 05-30-029 • KUG 1233 + 272 • 2MASX J12355844 + 2657570 • GALEX ASC J123558.43 + 265756.9 | |
IC 3556 is a lenticular galaxy with an active nucleus of the Hubble type SB0 in the constellation Coma Berenices in the northern sky . It is estimated to be 330 million light years away from the Milky Way and has a diameter of around 35,000 ly.
In the same area of the sky are the galaxies NGC 4558 , NGC 4563 , IC 3559 , IC 3561 .
The object was discovered by Max Wolf on March 23, 1903 .