HD 114729
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| Observation data Epoch 2000 Equinox 2000 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 12m 44.2575s |
| Declination | –31° 52′ 24.056″ |
| Apparent magnitude (V) | 6.69 |
| Distance | 114.1 ly (35.00 pc) |
| Spectral type | G3V |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
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.
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[edit] 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.
| 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 |
[edit] See also
[edit] References
- ^ Butler, R. Paul et al (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455–466. Bibcode 2003ApJ...582..455B. doi:10.1086/344570. http://www.iop.org/EJ/article/0004-637X/582/1/455/56131.html.
- ^ Butler, R. P. et al (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode 2006ApJ...646..505B. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.
[edit] 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.
Coordinates: 
13h 12m 44.2575s, −31° 52′ 24.056″
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