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K2-391 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-391 b

Confirmed exoplanet · Terrestrial

K2-391 b

Orbiting K2-391

Discovered in 2022 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 K2-391 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Transit
Radius: 1.371 R⊕
Mass: 2.45 M⊕
Orbit: 4.622654 days
Distance: 507.94 pc

Planet profile

Orbit and physical properties

Orbital period: 4.622654 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 1.371 Earth radii
Mass: 2.45 Earth masses
Mass provenance: M-R relationship
Density: 5.22 g/cm³
Equilibrium temperature: Not reported by the NASA Exoplanet Archive
Insolation: Not reported by the NASA Exoplanet Archive

Host system

Star and system properties

Host star: K2-391
Stars in system: 1
Known planets in system: 1
Spectral type: G7
Stellar temperature: 5,543 K
Stellar radius: 0.566 R☉
Stellar mass: 0.757 M☉
Stellar metallicity: -0.543 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 507.94 parsecs
Right ascension: 23h44m54.24s
Declination: -07d42m05.45s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,022
Publication date: 2022-06
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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