| Discovery | |
|---|---|
| Discovered by | Bouchy et al. |
| Discovery site |  La Silla Observatory |
| Discovery date | June 16, 2008 |
| Detection method | Doppler spectroscopy |
| Orbital characteristics | |
| Apastron | 0.052 AU (7,800,000 km) |
| Periastron | 0.048 AU (7,200,000 km) |
| Semi-major axis | 0.050 AU (7,500,000 km) |
| Eccentricity | 0.038 ± 0.02 |
| Orbital period (sidereal) | 4.0845 ± 0.0002 d |
| Average orbital speed | 130 |
| Time of periastron | 2,454,562.77 ± 0.08 |
| Star | HD 47186 |
HD 47186 b is a “hot Neptune” extrasolar planet located approximately 123 light years away in the constellation of Canis Major, orbiting the star HD 47186. This planet has a minimum mass of 22.78 times that of Earth and orbits very close to the star at a similar distance from the star as 51 Pegasi b is from 51 Pegasi. As in consequence, it takes 4.0845 days to complete an orbit with an eccentricity of 0.038, which is similar to the 5.66 year-period planet HD 70642 b.
References
External links
- "HD 47186 b". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-09.
| HD 47186 system | |
|---|---|
| Stars | |
| Planets | |
| Constellation of Canis Major | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stars |
| ||||||||||||
| |||||||||||||
| Star clusters |
| ||||||||||||
| |||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
 Category | |||||||||||||
 | This extrasolar-planet-related article is a stub. You can help Misplaced Pages by expanding it. |