IC 818
| Galaxy IC 818 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 46 m 44.5 s |
| declination | + 29 ° 44 ′ 07 ″ |
| Appearance | |
| Morphological type | S0 / Seyfert |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 0.90 × 0.2 |
| Position angle | 48 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.015547 ± 0.000093 |
| Radial velocity | 4661 ± 28 km / s |
|
Stroke distance v rad / H 0 |
(209 ± 15) · 10 6 ly (64 ± 4.5) Mpc |
| history | |
| discovery | Rudolf Spitaler |
| Discovery date | May 18, 1892 |
| Catalog names | |
| IC 818 • PGC 43113 • CGCG 159-073 • MCG + 05-30-078 • 2MASX J12464453 + 2944068 • ASK 579150.0 | |
IC 818 is a spiral galaxy with an active nucleus of the Hubble type Sb in the constellation Coma Berenices in the northern sky . It is an estimated 209 million light years from the Milky Way and about 55,000 light years in diameter.
The galaxies IC 820 , IC 821 , IC 822 are located in the same area of the sky .
The object was discovered by Rudolf Spitaler on May 18, 1892 .