NGC 1
| Galaxy NGC 1 |
|
|---|---|
|
|
| NGC 1 & NGC 2, SDSS image | |
| AladinLite | |
| Constellation | Pegasus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 07 m 15.8 s |
| declination | + 27 ° 42 ′ 29 ″ |
| Appearance | |
| Morphological type | SA (s) b |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 1.6 ′ × 1.2 ′ |
| Position angle | 112 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Affiliation |
NGC 23 group LGG 2 |
| Redshift | 0.015177 ± 0.000002 |
| Radial velocity | 4550 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(211 ± 15) · 10 6 ly (64.7 ± 4.5) Mpc |
| history | |
| discovery | Heinrich d'Arrest |
| Discovery date | September 30, 1861 |
| Catalog names | |
| NGC 1 • UGC 57 • PGC 564 • CGCG 477-054 / 478-026 • MCG + 04-01-025 • IRAS 00047 + 2725 • 2MASX J00071582 + 2742291 • GC 1 • NVSS J000715 + 274228 • HOLM 002A • KPG 002A | |
NGC 1 is a spiral galaxy of Hubble type Sb in Pegasus at the northern sky. It is estimated to be 211 million light years from the Milky Way and about 100,000 light years in diameter. Together with NGC 2 , it forms the optical pair of galaxies Holm 2 or KPG 2 , but the latter is about twice as far away, so there is no connection between these two galaxies.
In the same area of the sky there are still u. a. the galaxies NGC 16 and NGC 22 .
The object was discovered on September 30, 1861 by the German-Danish astronomer Heinrich Louis d'Arrest .
Web links
Commons : NGC 1 - collection of images, videos and audio files
