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HD 109988 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 109988 b

Confirmed exoplanet · Gas Giant

HD 109988 b

Orbiting HD 109988

Discovered in 2022 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 109988 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 12.1 R⊕
Mass: 6,935.333669 M⊕
Orbit: 17,132.15854 days
Distance: 42.5279 pc

Planet profile

Orbit and physical properties

Orbital period: 17,132.15854 days
Semi-major axis: 12.518 AU
Eccentricity: 0.056
Radius: 12.1 Earth radii
Mass: 6,935.333669 Earth masses
Mass provenance: Mass
Density: 21.5 g/cm³
Equilibrium temperature: 65.91 K
Insolation: 0.0031 Earth flux

Host system

Star and system properties

Host star: HD 109988
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,185.97 K
Stellar radius: 0.869694 R☉
Stellar mass: 0.88 M☉
Stellar metallicity: 0.14 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 42.5279 parsecs
Right ascension: 12h39m15.71s
Declination: -32d43m34.90s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,022
Publication date: 2022-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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