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HD 219139 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 219139 b

Confirmed exoplanet · Gas Giant

HD 219139 b

Orbiting HD 219139

Discovered in 2021 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 219139 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,021
Method: Radial Velocity
Radius: 14 R⊕
Mass: 247.906157 M⊕
Orbit: 275.5 days
Distance: 104.935 pc

Planet profile

Orbit and physical properties

Orbital period: 275.5 days
Semi-major axis: 0.94 AU
Eccentricity: 0.11
Radius: 14 Earth radii
Mass: 247.906157 Earth masses
Mass provenance: Msini
Density: 0.496 g/cm³
Equilibrium temperature: 804.83 K
Insolation: 70.5297 Earth flux

Host system

Star and system properties

Host star: HD 219139
Stars in system: 1
Known planets in system: 1
Spectral type: G5 III
Stellar temperature: 4,831 K
Stellar radius: 11.22 R☉
Stellar mass: 1.46 M☉
Stellar metallicity: -0.2 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 104.935 parsecs
Right ascension: 23h13m26.50s
Declination: +11d03m53.94s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,021
Publication date: 2022-02
Discovery locale: Ground
Facility: Okayama Astrophysical Observatory
Telescope: 1.88 m Telescope
Instrument: HIDES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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