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HD 218566 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 218566 b

Confirmed exoplanet · Gas Giant

HD 218566 b

Orbiting HD 218566

Discovered in 2010 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 218566 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,010
Method: Radial Velocity
Radius: 9.32 R⊕
Mass: 63.566 M⊕
Orbit: 225.7 days
Distance: 28.8274 pc

Planet profile

Orbit and physical properties

Orbital period: 225.7 days
Semi-major axis: 0.69 AU
Eccentricity: 0.3
Radius: 9.32 Earth radii
Mass: 63.566 Earth masses
Mass provenance: Msini
Density: 0.431 g/cm³
Equilibrium temperature: 253.15 K
Insolation: 0.7414 Earth flux

Host system

Star and system properties

Host star: HD 218566
Stars in system: 1
Known planets in system: 1
Spectral type: K3V
Stellar temperature: 4,730 K
Stellar radius: 0.85 R☉
Stellar mass: 0.76 M☉
Stellar metallicity: 0.28 dex
Stellar age: 8.5 Gyr
Distance: 28.8274 parsecs
Right ascension: 23h09m11.38s
Declination: -02d15m40.19s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,010
Publication date: 2011-02
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 218566 b.

Generic gas giant catalog artwork; not a direct image of HD 218566 b — Apex Andromeda catalog artwork

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