NGC 9
| Galaxy NGC 9 |
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|---|---|
![NGC 9 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC9_-_SDSS_DR14.jpg)
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| NGC 9 SDSS image | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 08 m 54.70 s |
| declination | + 23 ° 49 ′ 01 ″ |
| Appearance | |
| Morphological type | Sb: / pec / HII |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.3 '× 0.7' |
| Position angle | 148.8 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.015104 ± 0.000033 |
| Radial velocity | 4528 ± 10.1 km / s |
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Stroke distance v rad / H 0 |
(210 ± 15) · 10 6 ly (64.3 ± 4.5) Mpc |
| history | |
| discovery | Otto Wilhelm von Struve |
| Discovery date | September 27, 1865 |
| Catalog names | |
| NGC 9 • UGC 78 • PGC 652 • CGCG 477-059 • CGCG 478-031 • MCG + 04-01-030 • IRAS 00063 + 2332 • KUG 006 + 235 • 2MASX J00085471 + 2349009 • GC 5083 • KIG 6 • HOLM 3A • NVSS J000854 + 234903 • WISEA J000854.64 + 234901.8 | |
NGC 9 is a spiral galaxy of the Hubble type Sb with extensive star formation areas in the constellation Pegasus in the northern sky . It is estimated to be 210 million light years from the Milky Way and about 65,000 light years in diameter.
The object was discovered on September 27, 1865 by the German-Baltic astronomer Otto Wilhelm von Struve .
Web links
Commons : NGC 9 - collection of images, videos and audio files
