NGC 207
| Galaxy NGC 207 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 39 m 40.7 s |
| declination | -14 ° 14 ′ 13 ″ |
| Appearance | |
| Morphological type | Sc / HII |
| Brightness (visual) | +13.7 mag |
| Brightness (B-band) | +14.6 mag |
| Angular expansion | 0.9 ′ × 0.4 ′ |
| Position angle | 85 ° |
| Surface brightness | +12.4 mag / arcmin² |
| Physical data | |
| Redshift | +0.013276 ± 0.000017 |
| Radial velocity | +3980 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(180 ± 13) x 10 6 ly (55.1 ± 3.9) Mpc |
| history | |
| discovery | RJ Mitchell |
| Discovery date | December 7, 1857 |
| Catalog names | |
| NGC 207 • PGC 2395 • MCG -03-02-035 • IRAS 00371-1430 • 2MASX J00394071-1414134 • GC 108 • GALEX ASC J003940.67-141412.4 | |
NGC 207 is a spiral galaxy with extensive star formation regions of the Hubble type Sa in the constellation Whale south of the ecliptic . It is estimated to be 180 million light years away from the Milky Way and has a diameter of around 45,000 ly.
In the same area of the sky are the galaxies NGC 178 , NGC 187 , NGC 210 , IC 41 , among others .
The Type Ic supernova SN 2005ct was observed here.
The object was discovered on December 7, 1857 by the Irish astronomer RJ Mitchell , an assistant to William Parsons .