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NGTS-31 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/NGTS-31 b

Confirmed exoplanet · Gas Giant

NGTS-31 b

Orbiting NGTS-31

Discovered in 2025 using Transit. 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 NGTS-31 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Transit
Radius: 18.046459 R⊕
Mass: 355.967816 M⊕
Orbit: 4.162734 days
Distance: 497.376 pc

Planet profile

Orbit and physical properties

Orbital period: 4.162734 days
Semi-major axis: 0.064 AU
Eccentricity: 0
Radius: 18.046459 Earth radii
Mass: 355.967816 Earth masses
Mass provenance: Mass
Density: 0.3 g/cm³
Equilibrium temperature: 1,410 K
Insolation: 643 Earth flux

Host system

Star and system properties

Host star: NGTS-31
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,710 K
Stellar radius: 1.7 R☉
Stellar mass: 0.96 M☉
Stellar metallicity: 0 dex
Stellar age: 9.97 Gyr
Distance: 497.376 parsecs
Right ascension: 05h21m41.10s
Declination: -38d39m24.58s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,025
Publication date: 2025-01
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

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