IC 822
| Galaxy IC 822 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 47 m 45.5 s |
| declination | + 30 ° 04 ′ 38 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 15.2 mag |
| Brightness (B-band) | 16.0 mag |
| Angular expansion | 0.40 × 0.4 |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 1656 |
| Redshift | 0.062156 ± 0.000103 |
| Radial velocity | 18,634 ± 31 km / s |
|
Stroke distance v rad / H 0 |
(833 ± 58) · 10 6 ly (255.5 ± 17.9) Mpc |
| history | |
| discovery | Rudolf Spitaler |
| Discovery date | March 18, 1892 |
| Catalog names | |
| IC 822 • PGC 43196 • MCG + 05-30-085 • 2MASX J12474550 + 3004378 • GALEX ASC J124745.61 + 300438.9 | |
IC 822 is a galaxy of Hubble type S? in the constellation Coma Berenices in the northern sky . It is estimated to be 833 million light years from the Milky Way and about 100,000 light years in diameter. She is considered a member of the Coma galaxy cluster Abell 1656 .
The galaxies IC 818 , IC 820 , IC 821 are located in the same area of the sky .
The object was discovered by Rudolf Spitaler on March 18, 1892 .