HD 11964 c
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| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 3.46±0.13 AU |
| Eccentricity | (e) | 0.05+0.03-0.05 |
| Orbital period | (P) | 1924+44-43 d |
| Angular distance | (θ) | 91.716 mas |
| Longitude of periastron |
(ω) | 236° |
| Time of periastron | (T0) | 2,412,563.47 JD |
| Semi-amplitude | (K) | 14.9 m/s |
| Physical characteristics | ||
| Mass | (m) | >0.77±0.08 MJ |
| Discovery information | ||
| Discovery date | August 7, 2005 (reproved: May 27, 2007) |
|
| Discoverer(s) | Butler et al. | |
| Detection method | doppler spectroscopy | |
| Discovery site | United States | |
| Discovery status | proven | |
HD 11964 c is a long-period planet taking 1924 days to revolve around the star HD 11964. It has semimajor axis of 3.46 AU and semiminor axis of 3.46 AU. It has a circular orbit comparable to Jupiter and Saturn in our solar system. At periastron, the distance is 3.28 AU and at apastron, the distance is 3.64 AU. The planet's mass is about 0.77 times Jupiter.
The planet was originally discovered in summer 2005, then the planet was disproven in early January 2006. However in May 2007, the planet is now proven by taking more precise measurements of the radial velocity of the star.
[edit] References
- P.C. Gregory (Sept 6, 2007). "A Bayesian periodogram finds evidence for three planets in HD 11964".
[edit] External links
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