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TOI-1438 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-1438 b

Confirmed exoplanet · Neptune Like

TOI-1438 b

Orbiting TOI-1438

Discovered in 2025 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of TOI-1438 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Transit
Radius: 3.04 R⊕
Mass: 9.4 M⊕
Orbit: 5.13967 days
Distance: 110.513 pc

Planet profile

Orbit and physical properties

Orbital period: 5.13967 days
Semi-major axis: 0.0553 AU
Eccentricity: 0
Radius: 3.04 Earth radii
Mass: 9.4 Earth masses
Mass provenance: Mass
Density: 1.8 g/cm³
Equilibrium temperature: 971 K
Insolation: 145 Earth flux

Host system

Star and system properties

Host star: TOI-1438
Stars in system: 1
Known planets in system: 2
Spectral type: K0 V
Stellar temperature: 5,230 K
Stellar radius: 0.82 R☉
Stellar mass: 0.876 M☉
Stellar metallicity: 0.03 dex
Stellar age: 2.2 Gyr
Distance: 110.513 parsecs
Right ascension: 18h43m41.71s
Declination: +74d56m16.20s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,025
Publication date: 2025-10
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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