NGC 819
Galaxy NGC 819 |
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NGC 819 with LEDA 212918 (ru) SDSS image | |
AladinLite | |
Constellation | triangle |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 02 h 08 m 34.5 s |
declination | + 29 ° 14 ′ 05 ″ |
Appearance | |
Morphological type | S? |
Brightness (visual) | 13.4 mag |
Brightness (B-band) | 14.3 mag |
Angular expansion | 0.6 ′ × 0.4 ′ |
Position angle | 10 ° |
Surface brightness | 11.7 mag / arcmin² |
Physical data | |
Redshift | 0.021935 ± 0.000033 |
Radial velocity | 5576 ± 10 km / s |
Stroke distance v rad / H 0 |
(299 ± 21) · 10 6 ly (91.6 ± 6.4) Mpc |
history | |
discovery | Heinrich d'Arrest |
Discovery date | 1865 |
Catalog names | |
NGC 819 • UGC 1632 • PGC 8174 • CGCG 504-017 • IRAS 02056 + 2859 • KUG 0205 + 289 • 2MASX J02083436 + 2914025 • GC 5216 • NVSS J020834 + 291357 • KIG 92 |
NGC 819 is a galaxy of Hubble type S? in the constellation Triangle in the northern sky . It is estimated to be 299 million light years away from the Milky Way and has a diameter of around 50,000 ly.
In the same area of the sky are the galaxies NGC 807 and NGC 816 , among others .
The type IC supernova SN 2007hb was observed here.
The object was by astronomer d'Heinrich arrest in 1865 using a 28-cm - telescope discovered.