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HD 188641 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 188641 b

Confirmed exoplanet · Gas Giant

HD 188641 b

Orbiting HD 188641

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 188641 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 11.9 R⊕
Mass: 9,333.031172 M⊕
Orbit: 14,583.81038 days
Distance: 64.3399 pc

Planet profile

Orbit and physical properties

Orbital period: 14,583.81038 days
Semi-major axis: 12.027 AU
Eccentricity: 0.034
Radius: 11.9 Earth radii
Mass: 9,333.031172 Earth masses
Mass provenance: Mass
Density: 30.4 g/cm³
Equilibrium temperature: 114.36 K
Insolation: 0.0285 Earth flux

Host system

Star and system properties

Host star: HD 188641
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,897.32 K
Stellar radius: 1.94492 R☉
Stellar mass: 1.07 M☉
Stellar metallicity: -0.08 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 64.3399 parsecs
Right ascension: 19h57m37.16s
Declination: -37d44m41.58s

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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