NGC 108
| Galaxy NGC 108 |
|
|---|---|
![NGC 108 [1] (SDSS image)](https://de.wikipedia.org/wiki/Datei:NGC108_-_SDSS_DR14.jpg)
|
|
| NGC 108 ( SDSS image) | |
| AladinLite | |
| Constellation | Andromeda |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 25 m 59.73 s |
| declination | + 29 ° 12 ′ 43.4 ″ |
| Appearance | |
| Morphological type | (R) SB (r) 0+ |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2.3 ′ × 1.8 ′ |
| Position angle | 153 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 108 group LGG 5 |
| Redshift | 0.015801 ± 0.000083 |
| Radial velocity | 4716 ± 21 km / s |
|
Stroke distance v rad / H 0 |
(219 ± 15) x 10 6 ly (67.2 ± 4.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 11, 1784 |
| Catalog names | |
| NGC 108 • UGC 246 • PGC 1619 • CGCG 500-020 • MCG + 05-02-012 • 2MASX J00255971 + 2912434 • GC 53 • H III 148 • h 21 • GALEX ASC J002559.69 + 291242.7 | |
NGC 108 is a lenticular galaxy of the Hubble type SB0 in the constellation Andromeda in the northern sky . It is estimated to be 219 million light years from the Milky Way and about 140,000 light years in diameter. Together with five other galaxies, it forms dei.
The object was discovered on September 11, 1784 by the German-British astronomer Wilhelm Herschel .
NGC 108 group ( LGG 5 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 97 | PGC 1442 | 220 |
| NGC 108 | PGC 1619 | 219 |
| PGC 1544 | CGCG 500-015 | 220 |
| PGC 1552 | UGC 234 | 216 |
| PGC 1578 | MCG 05-02-011 | 224 |
| PGC 1913 | UGC 310 | 215 |
Web links
Commons : NGC 108 - collection of images, videos, and audio files
