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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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HD 222237 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 222237 b

Confirmed exoplanet · Gas Giant

HD 222237 b

Orbiting HD 222237

Discovered in 2024 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 222237 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,024
Method: Radial Velocity
Radius: 12.8 R⊕
Mass: 1,649.529432 M⊕
Orbit: 14,892 days
Distance: 11.4469 pc

Planet profile

Orbit and physical properties

Orbital period: 14,892 days
Semi-major axis: 10.8 AU
Eccentricity: 0.56
Radius: 12.8 Earth radii
Mass: 1,649.529432 Earth masses
Mass provenance: Mass
Density: 4.32 g/cm³
Equilibrium temperature: 58.74 K
Insolation: 0.0019 Earth flux

Host system

Star and system properties

Host star: HD 222237
Stars in system: 1
Known planets in system: 1
Spectral type: K3 V
Stellar temperature: 4,751 K
Stellar radius: 0.71 R☉
Stellar mass: 0.76 M☉
Stellar metallicity: -0.32 dex
Stellar age: 8.8 Gyr
Distance: 11.4469 parsecs
Right ascension: 23h39m37.89s
Declination: -72d43m31.18s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,024
Publication date: 2024-11
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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