IC 821
| Galaxy IC 821 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 47 m 26.1 s |
| declination | + 29 ° 47 ′ 16 ″ |
| Appearance | |
| Morphological type | SAB (s) bc |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.10 × 1.1 |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.022442 ± 0.000017 |
| Radial velocity | 6728 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(301 ± 21) x 10 6 ly (92.4 ± 6.5) Mpc |
| history | |
| discovery | Rudolf Spitaler |
| Discovery date | March 18, 1892 |
| Catalog names | |
| IC 821 • UGC 7957 • PGC 43161 • CGCG 159-076 • MCG + 05-30-083 • IRAS F12450 + 3003 • KUG 1245 + 300 • 2MASX J12472618 + 2947154 • ASK 579146.0 | |
IC 821 is a bar-spiral galaxy of the Hubble type SBbc in the constellation Coma Berenices in the northern sky . It is estimated to be 301 million light years away from the Milky Way and has a diameter of around 100,000 ly.
In the same area of the sky are the galaxies IC 818 , IC 820 , IC 822 .
The object was discovered by Rudolf Spitaler on March 18, 1892 .
Web links
Individual evidence
Attention: The sorting key "IC 0821" overwrites the previously used key "IC0821".