Astronomy:HD 47186 c
| Discovery | |
|---|---|
| Discovered by | Bouchy et al. |
| Discovery site |  La Silla Observatory |
| Discovery date | June 16, 2008 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| astron|astron|helion}} | 2.991 AU (447,400,000 km) |
| astron|astron|helion}} | 1.799 AU (269,100,000 km) |
| 2.395 AU (358,300,000 km) | |
| Eccentricity | 0.249 ± 0.073 |
| Orbital period | 1353.6 ± 57.1 d 3.7059 ± 0.156 y |
| Average Orbital speed | 19.31 |
| astron|astron|helion}} | 2,452,010 ± 180 |
| Star | HD 47186 |
HD 47186 c is an extrasolar planet orbiting the star HD 47186 in the constellation Canis Major, at a distance of approximately 120–125 ly (37–38 pc) from Earth. The planet has a minimum mass of about 0.35 |♃|J}}}}}} and an orbital period of approximately 1353 days. It orbits its host star at a semimajor axis of about 2.4 astronomical unit|AU (360,000,000 km; 220,000,000 mi) and has a moderate orbital eccentricity.[1]
Dynamical studies have shown that HD 47186 c plays a significant role in shaping the architecture of its planetary system. In particular, simulations indicate that additional low-mass planets could maintain stable orbits in regions between the known inner planet and HD 47186 c, including portions of the system’s habitable zone. These results suggest that the system may be capable of hosting yet-undetected terrestrial planets despite the presence of this outer giant planet.[2]
References
- ↑ Bouchy, F.; Mayor, M.; Udry, S.; Lovisa, C.; Pepe, F.; Queloz, D. (2009). "The HARPS search for southern extra-solar planets: XXVIII. A planetary system around the star HD 47186". Astronomy & Astrophysics 496 (2): 527–531. doi:10.1051/0004-6361:200810669. Bibcode: 2009A&A...496..527B.
- ↑ Kopparapu, Ravi Kumar; Raymond, Sean N.; Barnes, Rory (2009). "Stability of additional planets in and around the habitable zone of the HD 47186 planetary system". The Astrophysical Journal 695 (2): L181–L184. doi:10.1088/0004-637X/695/2/L181.
External links
- "HD 47186 c". Exoplanets. http://media4.obspm.fr/exoplanets/base/planete.php?etoile=HD+47186&planete=c.
Coordinates: 
06h 36m 08.7880s, −27° 37′ 20.268″
 |  |
