HD 114386
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 8.73[2] |
| Characteristics | |
| Spectral type | K3 V[2] |
| B−V Template:Engvar | 0.982[2] |
| Astrometry | |
| Radial velocity (Rv) | 33.350±0.0004[3] km/s |
| Proper motion (μ) | RA: −137.143 mas/yr[1] Dec.: −324.874 mas/yr[1] |
| Parallax (π) | 35.7355±0.0200 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 6.49[2] |
| Details | |
| Mass | 0.76±0.01[4] Template:Solar mass |
| Radius | 0.73±0.01[4] Template:Solar radius |
| Luminosity | 0.28±0.01[4] Template:Solar luminosity |
| Surface gravity (log g) | 4.58±0.02[4] cgs |
| Temperature | 4,926±13[4] K |
| Metallicity [Fe/H] | −0.012[5] dex |
| Rotational velocity (v sin i) | 3.06[5] km/s |
| Age | 8.8±2.8[4] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[6] | |
| Database references | |
| SIMBAD | data |
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HD 114386 is a star with a pair of orbiting exoplanets in the southern constellation of Centaurus. It has an apparent visual magnitude of 8.73,[2] which means it cannot be viewed with the naked eye but can be seen with a telescope or good binoculars. Based on parallax measurements, the system is located at a distance of 91 light years from the Sun. It is receding with a radial velocity of 33.4 km/s.[3] The star shows a high proper motion, traversing the celestial sphere at an angular rate of Script error: No such module "val"..[7]
The spectrum of HD 114386 yields a stellar classification of K3 V,[2] matching a K-type main-sequence star, or orange dwarf. It has 76% of the mass of the Sun and 73% of the Sun's radius. HD 114386 is a much older star than the Sun with an estimated age of roughly nine billion years.[4] The abundance of iron in the stellar atmosphere, a measure of the star's metallicity, is nearly solar.[5] It is rather dim compared to the Sun, radiating just 28% of the luminosity of the Sun from its photosphere at an effective temperature of 4,926 K.[4]
Planetary system
In 2004, the Geneva Extrasolar Planet Search Team announced the discovery of an extrasolar planet orbiting the star.[2] The preliminary data for a second exoplanet was released in 2011.[8]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet Template:OrbitboxPlanet
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See also
References
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