HD 114762 is a binary star system located approximately 126 light years 938.6 parsecs) away from Earth in the constellation Coma Berenices. The system composes of a yellow-white F-type main-sequence star (HD 114762 A), and either a red or brown dwarf companion, HD 114762 B. The stars are approximately 130 AU apart.
Planetary system[]
In 1989, a substellar object named HD 114762 b was found orbiting HD 114762 by Latham, et al., using Dopper spectroscopy. Its existence was not confirmed until 1991. In 2012, the planet was confirmed to be an extrasolar planet, which makes HD 114762 b the second exoplanet ever discovered, after Gamma Cephei Ab. It has a mass of at least 11 Jupiter mass. Its orbital distance and revolution is similar to that of Mercury, although it has twice the eccentricity.
| Planet | Mass | Semimajor axis | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >11.069 Jupiter mass | 0.353 AU | 93.9151 days | 0.3354 | N/A | N/A |