| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Virgo[1] |
| Right ascension | 13h 12m 43.78556s[2] |
| Declination | −02° 15′ 54.1307″[2] |
| Apparent magnitude (V) | 7.56[1] |
| Characteristics | |
| Spectral type | K1V[3] |
| B−Vcolor index | 0.930±0.013[1] |
| Variable type | Constant[4] |
| Astrometry | |
| Radial velocity (Rv) | −12.07±0.12[2] km/s |
| Proper motion (μ) | RA: −138.362(34)mas/yr[2] Dec.: 10.284(22)mas/yr[2] |
| Parallax (π) | 47.5529±0.0291 mas[2] |
| Distance | 68.59 ± 0.04 ly (21.03 ± 0.01 pc) |
| Absolute magnitude (MV) | 6.00[1] |
| Details[5] | |
| Mass | 0.883+0.018 −0.028 M☉ |
| Radius | 0.810+0.011 −0.009 R☉ |
| Luminosity | 0.423±0.001[6] L☉ |
| Surface gravity (log g) | 4.42±0.58 cgs |
| Temperature | 5,114±12 K |
| Metallicity[Fe/H] | 0.08±0.11 dex |
| Rotational velocity (v sin i) | 1.9±0.5 km/s |
| Age | 2.5+3.0 −1.6 Gyr |
| Other designations | |
| BD−01°2784,GJ 3769,HD 114783,HIP 64457,SAO 139218 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| ARICNS | data |
HD 114783 is a star with twoexoplanetary companions in theequatorialconstellation ofVirgo. With anapparent visual magnitude of 7.56[1] it is too faint to be visible with the unaided eye, but is an easy target forbinoculars. Based onparallax measurements, it is located at a distance of 68.6light-years (21.0parsecs) from theSun, but is drifting closer with aradial velocity of −12 km/s.[2]
This is an orange-huedK-type main-sequence star with astellar classification of K1V.[3] It is roughly 2.5[5] billion years old and ischromospherically inactive[4] with a lowprojected rotational velocity of 1.9 km/s.[5] The star has 88% of the mass and 81% of the radius of the Sun.[5] It is radiating 42%[6] of the luminosity of the Sun from itsphotosphere at aneffective temperature of 5,114 K.[5]
In 2001, theCalifornia and Carnegie Planet Search team found anexoplanet, HD 114783 b, orbiting the star using theradial velocity method. The discovery was made with theKeck Telescope.[4] A second companion, HD 114783 c, was discovered in 2016,[7] and in 2023 itsinclination andtrue mass were measured by the first time, viaastrometry.[8] The masses and orbits were revised in 2025.[9]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (years) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥ 1.043±0.038 MJ | 1.180+0.019 −0.021 | 1.34858(82) | 0.121+0.013 −0.014 | — | — |
| c | 1.47+0.58 −0.63 MJ | 5.03±0.12 | 11.89+0.30 −0.27 | 0.074+0.047 −0.045 | 21+7 −4[8] or152+8 −27° | — |
