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WASP-155 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/WASP-155 b

Confirmed exoplanet · Gas Giant

WASP-155 b

Orbiting WASP-155

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 WASP-155 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Transit
Radius: 13.450777 R⊕
Mass: 276.828543 M⊕
Orbit: 3.110413 days
Distance: 399.63 pc

Planet profile

Orbit and physical properties

Orbital period: 3.110413 days
Semi-major axis: 0.043 AU
Eccentricity: 0
Radius: 13.450777 Earth radii
Mass: 276.828543 Earth masses
Mass provenance: Mass
Density: 0.62 g/cm³
Equilibrium temperature: 1,468 K
Insolation: 771 Earth flux

Host system

Star and system properties

Host star: WASP-155
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,660 K
Stellar radius: 1.24 R☉
Stellar mass: 1.09 M☉
Stellar metallicity: 0 dex
Stellar age: 1.7 Gyr
Distance: 399.63 parsecs
Right ascension: 23h11m55.13s
Declination: +33d02m51.41s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,025
Publication date: 2025-06
Discovery locale: Ground
Facility: SuperWASP
Telescope: Canon 200mm f/1.8L
Instrument: e2v CCD Camera
NASA Exoplanet Archive: Open composite record ↗

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