NGC 686
| Galaxy NGC 686 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Chemical furnace |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 48 m 56.1 s |
| declination | -23 ° 47 ′ 53 ″ |
| Appearance | |
| Morphological type | SA0-: |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.7 ′ × 1.4 ′ |
| Position angle | 14 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.015614 +/- 0.000037 |
| Radial velocity | 4681 +/- 11 km / s |
|
Stroke distance v rad / H 0 |
(208 ± 15) · 10 6 ly (63.7 ± 4.5) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | October 26, 1785 |
| Catalog names | |
| NGC 686 • PGC 6655 • ESO 477-6 • MCG -04-05-008 • 2MASX J01485612-2347535 • SGC 014636-2402.8 • GC 408 • H III 459 • h 155/2437 • | |
NGC 686 is an elliptical galaxy of the Hubble type E / S0 in the constellation Fornax in the southern sky . It is estimated to be 200 million light years from the Milky Way and about 100,000 light years in diameter.
The object was discovered on October 26, 1785 by the German-British astronomer Wilhelm Herschel .
Web links
Commons : NGC 686 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 686. Deep Sky Observer's Companion, accessed on September 18, 2015 .