NGC 245
| Galaxy NGC 245 |
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|---|---|
![NGC 245 with LEDA 1112558 (ro) [1] SDSS image of NGC 245](https://de.wikipedia.org/wiki/Datei:NGC245_-_SDSS_DR14.jpg)
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| NGC 245 with LEDA 1112558 (ro) SDSS image of NGC 245 | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 46 m 05.39 s |
| declination | -01 ° 43 ′ 24.2 ″ |
| Appearance | |
| Morphological type | SA (rs) b / HII / Sbrst |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 1.3 ′ × 1.1 ′ |
| Position angle | 145 ° |
| Surface brightness | 12.5 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 271 group LGG 13 |
| Redshift | 0.013604 ± 0.000035 |
| Radial velocity | 4078 ± 10 km / s |
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Stroke distance v rad / H 0 |
(186 ± 13) · 10 6 ly (56.9 ± 4.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | October 1, 1785 |
| Catalog names | |
| NGC 245 • UGC 476 • PGC 2691 • CGCG 384-004 • MCG + 00-03-005 • IRAS 00435-0159 • 2MASX J00460539-0143242 • Mrk 555 • GC 130 • H II 445 • GALEX ASC J004605.48-014323.5 • HIPASS J0046-01 • LDCE 48 NED002 | |
NGC 245 is a spiral galaxy with a high rate of star formation of the Hubble type Sb in the constellation Whale south of the ecliptic . It is estimated to be 186 million light years from the Milky Way and about 70,000 light years across. Together with six other galaxies, it forms the NGC 271 group ( LGG 13 ).
In the same area of the sky is u. a. the galaxy NGC 227 .
The object was discovered on October 1, 1785 by the German-British astronomer Wilhelm Herschel .
Web links
Commons : NGC 245 - collection of images, videos, and audio files
