HD 114783

HD 114783 is a star with two exoplanetary companions in the equatorial constellation of Virgo. With an apparent visual magnitude of 7.56^[1] it is too faint to be visible with the unaided eye, but is an easy target for binoculars. Based on parallax measurements, it is located at a distance of 68.6 light-years (21.0 parsecs) from the Sun, but is drifting closer with a radial velocity of −12 km/s.^[2]

HD 114783

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−V color 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

This is an orange-hued K-type main-sequence star with a stellar classification of K1V.^[3] It is roughly 2.5^[5] billion years old and is chromospherically inactive^[4] with a low projected 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 its photosphere at an effective temperature of 5,114 K.^[5]

In 2001, the California and Carnegie Planet Search team found an exoplanet, HD 114783 b, orbiting the star using the radial velocity method. The discovery was made with the Keck Telescope.^[4] A second companion, HD 114783 c, was discovered in 2016,^[7] and in 2023 its inclination and true mass were measured by the first time, via astrometry.^[8] The masses and orbits were revised in 2025.^[9]

The HD 114783 planetary system^[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] or 152+8 −27°	—

See also

• HD 114386
• List of extrasolar planets