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K2-239 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-239 b

Confirmed exoplanet · Terrestrial

K2-239 b

Orbiting K2-239

Discovered in 2018 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic terrestrial catalog artwork; not a direct image of K2-239 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 1.1 R⊕
Mass: 1.37 M⊕
Orbit: 5.24 days
Distance: 31.0849 pc

Planet profile

Orbit and physical properties

Orbital period: 5.24 days
Semi-major axis: 0.0441 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 1.1 Earth radii
Mass: 1.37 Earth masses
Mass provenance: M-R relationship
Density: 5.66 g/cm³
Equilibrium temperature: 502 K
Insolation: 8.227 Earth flux

Host system

Star and system properties

Host star: K2-239
Stars in system: 1
Known planets in system: 3
Spectral type: M3.0 V
Stellar temperature: 3,420 K
Stellar radius: 0.36 R☉
Stellar mass: 0.4 M☉
Stellar metallicity: -0.1 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 31.0849 parsecs
Right ascension: 10h42m22.59s
Declination: +04d26m28.95s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2018-10
Discovery locale: Space
Facility: K2
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

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