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Kepler-18 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Kepler-18 b

Confirmed exoplanet · Super Earth

Kepler-18 b

Orbiting Kepler-18

Discovered in 2011 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Kepler-186f, the First Earth-size Planet in the Habitable Zone Artist Concept, an official NASA exoplanet image or artist concept — Sourced object or system artworkNASA/Ames/SETI Institute/JPL-Caltech

Discovery: 2,011
Method: Transit
Radius: 2 R⊕
Mass: 6.9 M⊕
Orbit: 3.504725 days
Distance: 433.047 pc

Planet profile

Orbit and physical properties

Orbital period: 3.504725 days
Semi-major axis: 0.0447 AU
Eccentricity: 0
Radius: 2 Earth radii
Mass: 6.9 Earth masses
Mass provenance: Mass
Density: 4.9 g/cm³
Equilibrium temperature: 1,165 K
Insolation: 355.735 Earth flux

Host system

Star and system properties

Host star: Kepler-18
Stars in system: 1
Known planets in system: 3
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,345 K
Stellar radius: 1.108 R☉
Stellar mass: 0.972 M☉
Stellar metallicity: 0.19 dex
Stellar age: 10 Gyr
Distance: 433.047 parsecs
Right ascension: 19h52m19.07s
Declination: +44d44m46.49s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,011
Publication date: 2011-11
Discovery locale: Space
Facility: Kepler
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

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