NGC 128
| Galaxy NGC 128 |
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|---|---|
![NGC 128 with NGC 127 (r.) & NGC 130 (lo) [1] (using the 81 cm reflecting telescope of the Mount Lemmon Observatory)](https://de.wikipedia.org/wiki/Datei:NGC_128_Mount_Lemmon_Sky_Center.jpg)
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| NGC 128 with NGC 127 (r.) & NGC 130 (lo) (using the 81 cm mirror telescope of the Mount Lemmon Observatory ) | |
| AladinLite | |
| Constellation | fishes |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 29 m 15.0 s |
| declination | + 02 ° 51 ′ 51 ″ |
| Appearance | |
| Morphological type | S0 / LINER |
| Brightness (visual) | 11.8 mag |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 2.5 ′ × 0.7 ′ |
| Position angle | 1 ° |
| Surface brightness | 12.3 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 128 group LGG 6 |
| Redshift | 0.014146 ± 0.000053 |
| Radial velocity | 4241 ± 16 km / s |
|
Stroke distance v rad / H 0 |
(194 ± 14) · 10 6 ly (59.5 ± 4.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 25, 1790 |
| Catalog names | |
| NGC 128 • UGC 292 • PGC 1791 • CGCG 383-029 • MCG + 00-02-051 • 2MASX J00291506 + 0251505 • GC 62 • H II 854 • h 25 • GALEX ASC J002915.05 + 025150.7 • USGC U017 NED01 | |
NGC 128 is a lenticular galaxy of the Hubble type S0 in the constellation Pisces on the ecliptic . It is an estimated 194 million light years from the Milky Way and about 140,000 light years in diameter. The galaxy has an unusual peanut-shaped halo , probably caused by the gravitational effects of its companions.
It is the largest member and namesake of the NGC-128 group , which also includes the galaxies NGC 126 , NGC 127 , NGC 130 , PGC 1723 , PGC 1737 , PGC 1741 , PGC 1746 , PGC 1748 , PGC 1760 and PGC 1770 .
The Type Ia / P supernova SN 2014da was observed here.
The object was discovered on December 25, 1790 by the German-British astronomer Wilhelm Herschel .
NGC 63 group ( LGG 6 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 128 | PGC 1791 | 194 |
| UGC 275 | PGC 1723 | 201 |
| UGC 283 | PGC 1741 | 185 |
| UGC 282 | PGC 1746 | 187 |
| UGC 277 | PGC 1737 | 200 |
| UGC 281 | PGC 1748 | 196 |
| MCG + 00-02-045 | PGC 1760 | 204 |
| MCG + 00-02-047 | PGC 1770 | 206 |
| NGC 126 | PGC 1784 | 185 |
| NGC 127 | PGC 1787 | 188 |
| NGC 130 | PGC 1794 | 203 |
Web links
Commons : NGC 128 - collection of images, videos, and audio files
