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TOI-159 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/TOI-159 b

Confirmed exoplanet · Gas Giant

TOI-159 b

Orbiting TOI-159

Discovered in 2026 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 TOI-159 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Transit
Radius: 18.18 R⊕
Mass: 1,110 M⊕
Orbit: 3.76284 days
Distance: 347.593 pc

Planet profile

Orbit and physical properties

Orbital period: 3.76284 days
Semi-major axis: 0.056 AU
Eccentricity: 0.24
Radius: 18.18 Earth radii
Mass: 1,110 Earth masses
Mass provenance: Mass
Density: 1.02 g/cm³
Equilibrium temperature: 1,891 K
Insolation: 1,797.8272 Earth flux

Host system

Star and system properties

Host star: TOI-159
Stars in system: 2
Known planets in system: 1
Spectral type: F0 V
Stellar temperature: 7,287 K
Stellar radius: 1.62 R☉
Stellar mass: 1.661 M☉
Stellar metallicity: 0.3 dex
Stellar age: 0.145 Gyr
Distance: 347.593 parsecs
Right ascension: 03h27m07.74s
Declination: -78d32m59.39s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,026
Publication date: 2026-07
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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