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GJ 422 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 422 b

Confirmed exoplanet · Neptune Like

GJ 422 b

Orbiting GJ 422

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 GJ 422 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Radial Velocity
Radius: 3.33 R⊕
Mass: 11.07 M⊕
Orbit: 20.129 days
Distance: 12.6631 pc

Planet profile

Orbit and physical properties

Orbital period: 20.129 days
Semi-major axis: 0.111 AU
Eccentricity: 0.11
Radius: 3.33 Earth radii
Mass: 11.07 Earth masses
Mass provenance: Msini
Density: 1.65 g/cm³
Equilibrium temperature: 292.68 K
Insolation: 0.8928 Earth flux

Host system

Star and system properties

Host star: GJ 422
Stars in system: 1
Known planets in system: 1
Spectral type: M3.5 V
Stellar temperature: 3,323 K
Stellar radius: 0.370328 R☉
Stellar mass: 0.35 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 12.6631 parsecs
Right ascension: 11h15m55.45s
Declination: -57d32m33.23s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,014
Publication date: 2014-06
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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