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HD 117207 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 117207 b

Confirmed exoplanet · Gas Giant

HD 117207 b

Orbiting HD 117207

Discovered in 2004 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 117207 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,004
Method: Radial Velocity
Radius: 13.4 R⊕
Mass: 669.346625 M⊕
Orbit: 2,621.75 days
Distance: 32.3547 pc

Planet profile

Orbit and physical properties

Orbital period: 2,621.75 days
Semi-major axis: 3.787 AU
Eccentricity: 0.157
Radius: 13.4 Earth radii
Mass: 669.346625 Earth masses
Mass provenance: Mass
Density: 1.53 g/cm³
Equilibrium temperature: 147.2 K
Insolation: 0.0811 Earth flux

Host system

Star and system properties

Host star: HD 117207
Stars in system: 1
Known planets in system: 1
Spectral type: G7 IV-V
Stellar temperature: 5,732 K
Stellar radius: 1.074 R☉
Stellar mass: 1.053 M☉
Stellar metallicity: 0.19 dex
Stellar age: 4.192 Gyr
Distance: 32.3547 parsecs
Right ascension: 13h29m20.85s
Declination: -35d34m16.69s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,004
Publication date: 2005-01
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 117207 b.

Generic gas giant catalog artwork; not a direct image of HD 117207 b — Apex Andromeda catalog artwork