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

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Gaia-4 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Gaia-4 b

Confirmed exoplanet · Gas Giant

Gaia-4 b

Orbiting Gaia-4

Discovered in 2025 using Astrometry. 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 Gaia-4 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Astrometry
Radius: 12.4 R⊕
Mass: 3,750.375203 M⊕
Orbit: 571.3 days
Distance: 73.4829 pc

Planet profile

Orbit and physical properties

Orbital period: 571.3 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: 0.338
Radius: 12.4 Earth radii
Mass: 3,750.375203 Earth masses
Mass provenance: Mass
Density: 10.8 g/cm³
Equilibrium temperature: Not reported by the NASA Exoplanet Archive
Insolation: Not reported by the NASA Exoplanet Archive

Host system

Star and system properties

Host star: Gaia-4
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 4,034 K
Stellar radius: 0.624 R☉
Stellar mass: 0.644 M☉
Stellar metallicity: 0.05 dex
Stellar age: 6.8 Gyr
Distance: 73.4829 parsecs
Right ascension: 13h58m01.53s
Declination: +31d41m43.76s

Discovery

Detection and provenance

Discovery method: Astrometry
Discovery year: 2,025
Publication date: 2025-02
Discovery locale: Space
Facility: European Space Agency (ESA) Gaia Satellite
Telescope: 1.45 m x 0.5 m Telescope
Instrument: Gaia CCD array
NASA Exoplanet Archive: Open composite record ↗

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