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K2-251 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-251 b

Confirmed exoplanet · Super Earth

K2-251 b

Orbiting K2-251

Discovered in 2018 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 K2-251 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 2.35 R⊕
Mass: 6.12 M⊕
Orbit: 9.30075 days
Distance: 147.03 pc

Planet profile

Orbit and physical properties

Orbital period: 9.30075 days
Semi-major axis: 0.0694 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.35 Earth radii
Mass: 6.12 Earth masses
Mass provenance: M-R relationship
Density: 2.59 g/cm³
Equilibrium temperature: 437 K
Insolation: 9.4444 Earth flux

Host system

Star and system properties

Host star: K2-251
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 3,717 K
Stellar radius: 0.49 R☉
Stellar mass: 0.52 M☉
Stellar metallicity: -0.04 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 147.03 parsecs
Right ascension: 12h42m45.42s
Declination: -08d32m09.54s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2018-08
Discovery locale: Space
Facility: K2
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from K2-251 b.

Generic super earth catalog artwork; not a direct image of K2-251 b — Apex Andromeda catalog artwork