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Kapteyn c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Kapteyn c

Confirmed exoplanet · Neptune Like

Kapteyn c

Orbiting Kapteyn

Discovered in 2014 using Radial Velocity. 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 Kapteyn c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Radial Velocity
Radius: 2.54 R⊕
Mass: 7 M⊕
Orbit: 121.54 days
Distance: 3.93305 pc

Planet profile

Orbit and physical properties

Orbital period: 121.54 days
Semi-major axis: 0.311 AU
Eccentricity: 0.23
Radius: 2.54 Earth radii
Mass: 7 Earth masses
Mass provenance: Msini
Density: 2.35 g/cm³
Equilibrium temperature: 165.59 K
Insolation: 0.1666 Earth flux

Host system

Star and system properties

Host star: Kapteyn
Stars in system: 1
Known planets in system: 1
Spectral type: M2.0V
Stellar temperature: 3,550 K
Stellar radius: 0.291 R☉
Stellar mass: 0.281 M☉
Stellar metallicity: -0.89 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 3.93305 parsecs
Right ascension: 05h11m50.08s
Declination: -45d02m34.87s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,014
Publication date: 2014-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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