NGC 773
| Galaxy NGC 773 |
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|---|---|
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| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 1 h 58 m 52.0 s |
| declination | -11 ° 30 ′ 53 ″ |
| Appearance | |
| Morphological type | SAB (r) a / pec / LINER |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.4 ′ × 0.8 ′ |
| Position angle | 179 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.018119 +/- 0.000087 |
| Radial velocity | 5432 +/- 26 km / s |
|
Stroke distance v rad / H 0 |
(243 ± 17) x 10 6 ly (74.5 ± 5.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | November 27, 1785 |
| Catalog names | |
| NGC 773 • PGC 7486 • MCG -02-06-011 • IRAS F01564-1145 • 2MASX J01585201-1130526 • GC 465 • H III 468 • h 2452 • LEDA 7486 | |
NGC 773 is a spiral galaxy with an active nucleus of the Hubble type Sa in the constellation Whale south of the celestial equator . It is estimated to be 243 million light years away from the Milky Way and has a diameter of around 100,000 ly.
In the same area of the sky is the galaxy IC 1767 .
The object was discovered on November 27, 1785 by the German-British astronomer Wilhelm Herschel .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 773. Deep Sky Observer's Companion, accessed on March 13, 2016 .
- NGC 773. DSO Browser, accessed March 13, 2016 .