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HD 164509 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 164509 b

Confirmed exoplanet · Gas Giant

HD 164509 b

Orbiting HD 164509

Discovered in 2012 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 164509 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,012
Method: Radial Velocity
Radius: 14.3 R⊕
Mass: 140.79869 M⊕
Orbit: 280.17 days
Distance: 53.1119 pc

Planet profile

Orbit and physical properties

Orbital period: 280.17 days
Semi-major axis: 0.87 AU
Eccentricity: 0.238
Radius: 14.3 Earth radii
Mass: 140.79869 Earth masses
Mass provenance: Msini
Density: 0.265 g/cm³
Equilibrium temperature: 319.12 K
Insolation: 1.7417 Earth flux

Host system

Star and system properties

Host star: HD 164509
Stars in system: 2
Known planets in system: 1
Spectral type: G5
Stellar temperature: 5,859 K
Stellar radius: 1.11 R☉
Stellar mass: 1.12 M☉
Stellar metallicity: 0.2 dex
Stellar age: 2.32 Gyr
Distance: 53.1119 parsecs
Right ascension: 18h01m31.22s
Declination: +00d06m16.09s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,012
Publication date: 2012-01
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

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