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K2-8 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-8 b

Confirmed exoplanet · Neptune Like

K2-8 b

Orbiting K2-8

Discovered in 2015 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of K2-8 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,015
Method: Transit
Radius: 3.58 R⊕
Mass: 12.5 M⊕
Orbit: 10.35239 days
Distance: 403.513 pc

Planet profile

Orbit and physical properties

Orbital period: 10.35239 days
Semi-major axis: 0.0856 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 3.58 Earth radii
Mass: 12.5 Earth masses
Mass provenance: M-R relationship
Density: 1.5 g/cm³
Equilibrium temperature: 631 K
Insolation: 37.7 Earth flux

Host system

Star and system properties

Host star: K2-8
Stars in system: 1
Known planets in system: 2
Spectral type: K3 V
Stellar temperature: 4,870 K
Stellar radius: 0.74 R☉
Stellar mass: 0.78 M☉
Stellar metallicity: -0.02 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 403.513 parsecs
Right ascension: 11h19m10.44s
Declination: -00d17m03.98s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,015
Publication date: 2015-08
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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