NGC 668
| Galaxy NGC 668 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Andromeda |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 46 m 22.7 s |
| declination | + 36 ° 27 ′ 37 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.8 ′ × 1.2 ′ |
| Position angle | 30 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.015004 +/- 0.000006 |
| Radial velocity | 4498 +/- 2 km / s |
|
Stroke distance v rad / H 0 |
(207 ± 14) · 10 6 ly (63.5 ± 4.4) Mpc |
| history | |
| discovery | Édouard Jean-Marie Stephan |
| Discovery date | 4th December 1880 |
| Catalog names | |
| NGC 668 • UGC 1238 • PGC 6502 • CGCG 521-080 / 522-001 • MCG + 6-05-03 • IRAS 01434 + 3612 • 2MASX J01462268 + 3627369 • LDCE 0115 NED002 | |
NGC 668 is a spiral galaxy in the constellation Andromeda , which is approximately 207 million light years from the Milky Way .
The object was discovered on December 4, 1880 by the French astronomer Édouard Jean-Marie Stephan .
Web links
Commons : NGC 668 - collection of images, videos, and audio files
- SIMBAD Astronomical Database
- Auke Slotegraaf: NGC 668. Deep Sky Observer's Companion, accessed September 8, 2015 .