NGC 7
| Galaxy NGC 7 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | sculptor |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 08 m 20.9 s |
| declination | -29 ° 54 ′ 54 ″ |
| Appearance | |
| Morphological type | SB (s) c? / sp |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 2.5 ′ × 0.5 ′ |
| Position angle | 24.2 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.004987 ± 0.000007 |
| Radial velocity | 1495 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(67 ± 5) · 10 6 ly (20.5 ± 1.4) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | September 27, 1834 |
| Catalog names | |
| NGC 7 • PGC 627 • ESO 409-022 • MCG -05-01-037 • IRAS F00058-3011 • SGC 000548-3011.6 • GC 2 • h 4014 • AM 0005-301 • HIPASS J0008-29 | |
NGC 7 is a bar-spiral galaxy of the Hubble type SBc of the Hubble type SBc in the constellation Sculptor in the southern sky . It is estimated to be 67 million light years from the Milky Way and about 45,000 ly in diameter.
The object was discovered on September 27, 1834 by the British astronomer John Herschel .
Web links
Commons : NGC 7 - collection of images, videos and audio files
