HD 114386
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, 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. The star shows a high proper motion, traversing the celestial sphere at an angular rate of 0.318 arcsec yr−1.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 10m 39.824s |
| Declination | −35° 03′ 17.21″ |
| Apparent magnitude (V) | 8.73 |
| Characteristics | |
| Spectral type | K3 V |
| B−V color index | 0.982 |
| Astrometry | |
| Radial velocity (Rv) | 33.350±0.0004 km/s |
| Proper motion (μ) | RA: −137.143 mas/yr Dec.: −324.874 mas/yr |
| Parallax (π) | 35.7355 ± 0.0200 mas |
| Distance | 91.27 ± 0.05 ly (27.98 ± 0.02 pc) |
| Absolute magnitude (MV) | 6.49 |
| Details | |
| Mass | 0.76±0.01 M☉ |
| Radius | 0.73±0.01 R☉ |
| Luminosity | 0.28±0.01 L☉ |
| Surface gravity (log g) | 4.58±0.02 cgs |
| Temperature | 4,926±13 K |
| Metallicity [Fe/H] | −0.012 dex |
| Rotational velocity (v sin i) | 3.06 km/s |
| Age | 8.8±2.8 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The spectrum of HD 114386 yields a stellar classification of K3 V, 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. The abundance of iron in the stellar atmosphere, a measure of the star's metallicity, is nearly solar. 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.