NGC 4816
| Galaxy NGC 4816 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 56 m 12.1 s |
| declination | + 27 ° 44 ′ 44 ″ |
| Appearance | |
| Morphological type | S0- |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.9 likes |
| Angular expansion | 1.3 ′ × 1.1 ′ |
| Position angle | 84 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 1656 |
| Redshift | 0.023066 +/- 0.000031 |
| Radial velocity | 6915 +/- 9 km / s |
|
Stroke distance v rad / H 0 |
(310 ± 22) x 10 6 ly (94.9 ± 6.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 11, 1785 |
| Catalog names | |
| NGC 4816 • UGC 8057 • PGC 44114 • CGCG 160-021 • MCG + 05-31-010 • 2MASX J12561213 + 2744440 • GC 3314 • H II 383 • h 1481 • LDCE 0926 NED022 | |
NGC 4816 is an elliptical galaxy of Hubble type E / S0 in the constellation Coma Berenices the northern sky . It is an estimated 310 million light years away from the Milky Way and has a diameter of about 120,000 ly. The galaxy is a member of the Coma galaxy cluster Abell 1656 .
In the same area of the sky are u. a. the galaxies NGC 4807 , NGC 4817 , NGC 4828 , NGC 4840 .
The object was discovered on April 11, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "F, pL".
Web links
- NGC 4816.SIMBAD , accessed January 9, 2019 .
- NGC 4816. DSO Browser, accessed February 15, 2015 .