NGC 808
| Galaxy NGC 808 |
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|---|---|
|
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| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 03 m 56.6 s |
| declination | -23 ° 18 ′ 42 ″ |
| Appearance | |
| Morphological type | (R ') SAB (rs) bc / HII |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1.2 ′ × 0.6 ′ |
| Position angle | 7 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.016558 +/- 0.000033 |
| Radial velocity | 4964 +/- 10 km / s |
|
Stroke distance v rad / H 0 |
(220 ± 15) · 10 6 ly (67.5 ± 4.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 14, 1830 |
| Catalog names | |
| NGC 808 • PGC 7865 • ESO 478-01 • MCG -04-06-003 • IRAS 02015-2333 • 2MASX J02035658-2318416 • SGC 020137-2333.2 • GC 485 • h 192/2458 • AM 0201-233 | |
NGC 808 is a bar-spiral galaxy in the constellation Whale south of the celestial equator . It is an estimated 220 million light years from the Milky Way and about 75,000 light years in diameter.
The object was discovered on October 14, 1830 by the British astronomer John Frederick William Herschel .
Web links
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 808. Deep Sky Observer's Companion, accessed on March 22, 2016 (English).
- NGC 808. DSO Browser, accessed March 22, 2016 .