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K2-221 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-221 b

Confirmed exoplanet · Super Earth

K2-221 b

Orbiting K2-221

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 K2-221 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 1.678903 R⊕
Mass: 3.46 M⊕
Orbit: 2.399094 days
Distance: 318.81 pc

Planet profile

Orbit and physical properties

Orbital period: 2.399094 days
Semi-major axis: Not reported by the NASA Exoplanet Archive
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 1.678903 Earth radii
Mass: 3.46 Earth masses
Mass provenance: M-R relationship
Density: 4.02 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: K2-221
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,716 K
Stellar radius: 0.947599 R☉
Stellar mass: 1.010842 M☉
Stellar metallicity: 0.13 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 318.81 parsecs
Right ascension: 01h06m37.21s
Declination: +10d11m23.06s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2018-03
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 K2-221 b.

Generic super earth catalog artwork; not a direct image of K2-221 b — Apex Andromeda catalog artwork