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K2-398 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-398 b

Confirmed exoplanet · Super Earth

K2-398 b

Orbiting K2-398

Discovered in 2022 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of K2-398 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Transit
Radius: 2.274 R⊕
Mass: 5.79 M⊕
Orbit: 6.393025 days
Distance: 606.992 pc

Planet profile

Orbit and physical properties

Orbital period: 6.393025 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.274 Earth radii
Mass: 5.79 Earth masses
Mass provenance: M-R relationship
Density: 2.71 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: K2-398
Stars in system: 1
Known planets in system: 2
Spectral type: G2
Stellar temperature: 5,946 K
Stellar radius: 1.239 R☉
Stellar mass: 0.945 M☉
Stellar metallicity: -0.257 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 606.992 parsecs
Right ascension: 10h46m56.39s
Declination: +01d56m12.14s

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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