NGC 816
| Galaxy NGC 816 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | triangle |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 08 m 08.8 s |
| declination | + 29 ° 15 ′ 21 ″ |
| Appearance | |
| Morphological type | Compact |
| Brightness (visual) | 14.2 mag |
| Brightness (B-band) | 15.2 mag |
| Angular expansion | 0.40 x 0.40 |
| Surface brightness | 12.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.036955 +/- 0.000062 |
| Radial velocity | 11,079 +/- 19 km / s |
|
Stroke distance v rad / H 0 |
(500 ± 35) · 10 6 ly (153.3 ± 10.7) Mpc |
| history | |
| discovery | Edouard Stephan |
| Discovery date | 1871 |
| Catalog names | |
| NGC 816 • PGC 8152 • CGCG 504-016 • IRAS 02052 + 2901 • KUG 0205 + 290 • 2MASX J02080890 + 2915217 • GC 5215 • NPM1G +29.0076 | |
NGC 816 is a compact galaxy in the triangle constellation in the northern sky , an estimated 500 million light years away from the Milky Way .
The object was by astronomer Edouard Stephan using in 1871 of a 80-cm - telescope discovered.