NGC 678
| Galaxy NGC 678 |
|
|---|---|
![NGC 678 (o), NGC 680 (m) & IC 1730 (lu) [1] (Mount Lemmon SkyCenter)](https://de.wikipedia.org/wiki/Datei:N678s.jpg)
|
|
| NGC 678 (o), NGC 680 (m) & IC 1730 (lu) (Mount Lemmon SkyCenter) | |
| AladinLite | |
| Constellation | Aries |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 49 m 24.86 s |
| declination | + 21 ° 59 ′ 50.3 ″ |
| Appearance | |
| Morphological type | SB (s) b: / sp |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.3 mag |
| Angular expansion | 4.5 ′ × 0.8 ′ |
| Position angle | 78 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 691 group LGG 34 |
| Redshift | 0.009457 ± 0.000013 |
| Radial velocity | 2835 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(131 ± 9) · 10 6 ly (40.3 ± 2.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 15, 1784 |
| Catalog names | |
| NGC 678 • UGC 1280 • PGC 6690 • CGCG 482-018 • MCG + 04-05-014 • IRAS F01466 + 2144 • 2MASX J01492485 + 2159502 • GC 399 • H II 228 • GALEX ASC J014924.70 + 215951.8 • LDCE 109 NED002 | |
NGC 678 is a barred spiral galaxy of the Hubble type SBb in the constellation Aries on the ecliptic . It is estimated to be 131 million light years from the Milky Way and about 170,000 light years in diameter . Presumably it forms a gravitationally bound galaxy pair together with NGC 680 . She is a member of the ten galaxies NGC 691 group ( LGG 34 ). In the same area of the sky are u. a. the galaxies NGC 691 , NGC 694 , IC 167 and IC 1730 .
The object was discovered on September 15, 1784 by the German-British astronomer Wilhelm Herschel .
Web links
Commons : NGC 678 - collection of images, videos, and audio files
