NGC 5666
| Galaxy NGC 5666 |
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|---|---|
![NGC 5666 & LEDA 1380994 [1] (o) SDSS image](https://de.wikipedia.org/wiki/Datei:NGC5666_-_SDSS_DR14.jpg)
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| NGC 5666 & LEDA 1380994 (o) SDSS image | |
| AladinLite | |
| Constellation | Bear keeper |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 33 m 09.2 s |
| declination | + 10 ° 30 ′ 39 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 0.9 ′ × 0.8 ′ |
| Position angle | 155 ° |
| Surface brightness | 12.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.007408 ± 0.000020 |
| Radial velocity | 2221 ± 6 km / s |
|
Stroke distance v rad / H 0 |
(100 ± 7) x 10 6 ly (30.6 ± 2.1) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | May 9, 1825 |
| Catalog names | |
| NGC 5666 • UGC 9360 • PGC 51995 • CGCG 075-066 • MCG + 02-37-023 • IRAS 14307 + 1043 • 2MASX J14330917 + 1030388 • GC 3924 • h 1834 • GALEX ASC J143309.20 + 103039.9 | |
NGC 5666 is a galaxy of Hubble type S? in the constellation Bear Guardian in the northern sky . It is estimated to be 100 million light-years away from the Milky Way and has a diameter of about 30,000 ly.
In the same area of the sky there is u. a. the galaxy NGC 5669 .
The object was discovered by John Herschel on May 9, 1825 .
Infrared image ( wavelength 1.6 µm) of NGC 5666, taken using the Hubble Space Telescope
literature
- Donzelli, CJ; Davoust, E .: "On the nature of the galaxy NGC 5666"; Astronomy and Astrophysics 409, pp. 91-97 (2003)