HD 114729

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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
CD-31°10156, HIP 64459, SAO 204237
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[edit]

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.

The HD 114729 planetary system[3]
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[edit]

References[edit]

  1. ^ a b c "HD 114729", Open Oxoplanet Catalogue, 2016, doi:10.1086/165131 
  2. ^ 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. 
  3. ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493Freely accessible. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. 

External links[edit]

Coordinates: Sky map 13h 12m 44.2575s, −31° 52′ 24.056″