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K2-188 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-188 b

Confirmed exoplanet · Terrestrial

K2-188 b

Orbiting K2-188

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 K2-188 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 1.35 R⊕
Mass: 2.39 M⊕
Orbit: 1.742169 days
Distance: 446.821 pc

Planet profile

Orbit and physical properties

Orbital period: 1.742169 days
Semi-major axis: 0.0289 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 1.35 Earth radii
Mass: 2.39 Earth masses
Mass provenance: M-R relationship
Density: 5.34 g/cm³
Equilibrium temperature: 1,692 K
Insolation: 1,945.6975 Earth flux

Host system

Star and system properties

Host star: K2-188
Stars in system: 1
Known planets in system: 2
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,977 K
Stellar radius: 1.19 R☉
Stellar mass: 1.06 M☉
Stellar metallicity: -0.01 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 446.821 parsecs
Right ascension: 08h39m15.29s
Declination: +23d21m26.77s

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 K2-188 b.

Generic terrestrial catalog artwork; not a direct image of K2-188 b — Apex Andromeda catalog artwork