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HD 114729

HD 114729 is a 7th magnitude star approximately 114 light years away in the constellation of Centaurus. Like our Sun, it is a yellow dwarf (spectral type G3V). However, it is about 10% less massive than the Sun, but still twice as bright. That indicates a much greater age, perhaps over 10 billion years.


Planetary system

In 2003 the California and Carnegie Planet Search team announced the discovery of a planet orbiting the star.[1] This planet orbits twice as far away from the star as Earth to the Sun and orbits very eccentrically. It has mass 95% that of Jupiter.

The HD 114729 system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >0.95 ± 0.10 MJ 2.11 ± 0.12 1114 ± 15 0.167 ± 0.055


See also

* List of extrasolar planets


References

1. ^ Butler et al.; Marcy, Geoffrey W.; Vogt, Steven S.; Fischer, Debra A.; Henry, Gregory W.; Laughlin, Gregory; Wright, Jason T. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455–466. doi:10.1086/344570. http://www.iop.org/EJ/article/0004-637X/582/1/455/56131.html.
2. ^ Butler et al.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.


External links

* "HD 114729". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+114729.
* "HD 114729". Extrasolar Visions. http://www.extrasolar.net/startour.asp?StarCatId=normal&StarId=161.

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