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HD 108863 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 108863 b

Confirmed exoplanet · Gas Giant

HD 108863 b

Orbiting HD 108863

Discovered in 2011 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 108863 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.3 R⊕
Mass: 767.24162 M⊕
Orbit: 437.7 days
Distance: 164.742 pc

Planet profile

Orbit and physical properties

Orbital period: 437.7 days
Semi-major axis: 1.32 AU
Eccentricity: 0.032
Radius: 13.3 Earth radii
Mass: 767.24162 Earth masses
Mass provenance: Msini
Density: 1.79 g/cm³
Equilibrium temperature: 490.51 K
Insolation: 9.6419 Earth flux

Host system

Star and system properties

Host star: HD 108863
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 4,878 K
Stellar radius: 5.74 R☉
Stellar mass: 1.59 M☉
Stellar metallicity: 0.2 dex
Stellar age: 1.8 Gyr
Distance: 164.742 parsecs
Right ascension: 12h30m19.83s
Declination: +21d56m53.16s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2011-12
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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