NGC 198
| Galaxy NGC 198 |
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|---|---|
![NGC 198 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC198_-_SDSS_DR14.jpg)
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| NGC 198 SDSS image | |
| AladinLite | |
| Constellation | fishes |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 39 m 22.98 s |
| declination | + 02 ° 47 ′ 52.5 ″ |
| Appearance | |
| Morphological type | SA (r) c |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.5 likes |
| Angular expansion | 1.2 ′ × 1.2 ′ |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 198 group LGG 9 |
| Redshift | 0.017596 ± 0.000137 |
| Radial velocity | 5275 ± 41 km / s |
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Stroke distance v rad / H 0 |
(240 ± 17) · 10 6 ly (73.6 ± 5.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 25, 1790 |
| Catalog names | |
| NGC 198 • UGC 414 • PGC 2371 • CGCG 383-057 • MCG + 00-02-109 • IRAS 00367 + 0231 • 2MASX J00392298 + 0247525 • GC 97 • H II 857 • GALEX ASC J003922.97 + 024752.7 • LDCE 36 NED004 • NVSS J003922 + 024752 | |
NGC 198 is a spiral galaxy from the Hubble type Sc in the constellation fish on the ecliptic . It is estimated to be 240 million light years from the Milky Way and about 85,000 light years in diameter. Together with three other galaxies, it forms the NGC 198 group ( LGG 9 ).
In the same area of the sky are the galaxies NGC 182 , NGC 194 , NGC 200 , NGC 208 .
The object was discovered on December 25, 1790 by the German-British astronomer Wilhelm Herschel .
NGC 198 group ( LGG 9 )
| Galaxy | Alternative name | Distance / million Lj |
|---|---|---|
| NGC 182 | PGC 2279 | 239 |
| NGC 194 | PGC 2362 | 238 |
| NGC 198 | PGC 2371 | 240 |
| NGC 200 | PGC 2387 | 235 |
Web links
Commons : NGC 198 - collection of images, videos, and audio files
