HD 114729
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 12m 44.2575s |
| Declination | –31° 52′ 24.056″ |
| Apparent magnitude (V) | 6.69 |
| Characteristics | |
| Spectral type | G3V |
| Astrometry | |
| Details | |
| Mass | 0.930 [1] M☉ |
| Radius | 1.460 [1] R☉ |
| Temperature | 5662 K K |
| Metallicity [Fe/H] | -0.220 [1] dex |
| Age | 6 ±2 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 114729 is a 7th magnitude star approximately 114 light years (35.0 parsec) away in the constellation of Centaurus. Like our Sun (G2V), 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. HD 114729 is in a binary system with HD 114729 B. HD 114729 B has mass of 0.253 of the Sun.
Planetary system
In 2003 the California and Carnegie Planet Search team announced the discovery of a planet orbiting the star.[2] This planet orbits twice as far away from the star as Earth to the Sun and orbits very eccentrically. It has mass 95% (0.840) that of Jupiter and 267 times the mass of Earth.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >0.95 ± 0.10 MJ | 2.11 ± 0.12 | 1114 ± 15 | 0.167 ± 0.055 | — | — |
See also
References
- 1 2 3 "HD 114729", Open Oxoplanet Catalogue, 2016, doi:10.1086/165131
- ↑ 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.
- ↑ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493
. doi:10.1086/504701.
External links
- "HD 114729". The Extrasolar Planets Encyclopaedia.
Coordinates: 
13h 12m 44.2575s, −31° 52′ 24.056″