NGC 4669
| Galaxy NGC 4669 |
|
|---|---|
![NGC 4669 with LEDA 2484042 (ol) [1] SDSS](https://de.wikipedia.org/wiki/Datei:NGC4669_-_SDSS_DR14.jpg)
|
|
| NGC 4669 with LEDA 2484042 (ol) SDSS | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 44 m 46.540 s |
| declination | + 54 ° 52 ′ 33.25 ″ |
| Appearance | |
| Morphological type | S. |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.8 x 0.6 |
| Position angle | 177 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 4686 group LGG 300 |
| Redshift | 0.016209 ± 0.000184 |
| Radial velocity | 4859 ± 55 km / s |
|
Stroke distance v rad / H 0 |
(221 ± 16) x 10 6 ly (67.8 ± 4.8) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 14, 1789 |
| Catalog names | |
| NGC 4669 • UGC 7925 • PGC 42942 • CGCG 270-018 • MCG + 09-21-038 • 2MASX J12444673 + 5452328 • GC 5668 • H III 778 • HARO 32 • LDCE 914 NED004 • NSA 42729 | |
NGC 4669 is a 13.7 mag bright spiral galaxy of the Hubble type Sb in the constellation Great Bear in the northern sky . It is estimated to be 221 million light years from the Milky Way and about 115,000 light years in diameter. The galaxy is considered a member of the NGC 4686 group ( LGG 300 ).
In the same area of the sky are the galaxies NGC 4644 , NGC 4646 , NGC 4675 , NGC 4686 .
The object was discovered by Wilhelm Herschel on April 14, 1789 .
Web links
- NGC 4669. SIMBAD , accessed January 30, 2015 .
- NGC 4669. DSO Browser, accessed January 30, 2015 .
- Auke Slotegraaf : NGC 4669. Deep Sky Observer's Companion, accessed January 30, 2015 .