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HD 118203 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 118203 b

Confirmed exoplanet · Gas Giant

HD 118203 b

Orbiting HD 118203

Discovered in 2005 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic gas giant catalog artwork; not a direct image of HD 118203 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,005
Method: Radial Velocity
Radius: 12.778238 R⊕
Mass: 680.152791 M⊕
Orbit: 6.134978 days
Distance: 92.2589 pc

Planet profile

Orbit and physical properties

Orbital period: 6.134978 days
Semi-major axis: 0.0713 AU
Eccentricity: 0.3136
Radius: 12.778238 Earth radii
Mass: 680.152791 Earth masses
Mass provenance: Mass
Density: 1.79 g/cm³
Equilibrium temperature: 1,361 K
Insolation: 593.4 Earth flux

Host system

Star and system properties

Host star: HD 118203
Stars in system: 1
Known planets in system: 2
Spectral type: K0 IV
Stellar temperature: 5,742 K
Stellar radius: 2.04 R☉
Stellar mass: 1.27 M☉
Stellar metallicity: 0.287 dex
Stellar age: 4.73 Gyr
Distance: 92.2589 parsecs
Right ascension: 13h34m02.39s
Declination: +53d43m41.48s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,005
Publication date: 2006-02
Discovery locale: Ground
Facility: Haute-Provence Observatory
Telescope: 1.93 m Telescope
Instrument: ELODIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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