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GJ 687 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 687 b

Confirmed exoplanet · Neptune Like

GJ 687 b

Orbiting GJ 687

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 687 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Radial Velocity
Radius: 4.32 R⊕
Mass: 17.2 M⊕
Orbit: 38.142 days
Distance: 4.54939 pc

Planet profile

Orbit and physical properties

Orbital period: 38.142 days
Semi-major axis: 0.163 AU
Eccentricity: 0.17
Radius: 4.32 Earth radii
Mass: 17.2 Earth masses
Mass provenance: Msini
Density: 1.17 g/cm³
Equilibrium temperature: 263.65 K
Insolation: 0.801 Earth flux

Host system

Star and system properties

Host star: GJ 687
Stars in system: 1
Known planets in system: 2
Spectral type: M3.0V
Stellar temperature: 3,413 K
Stellar radius: 0.4183 R☉
Stellar mass: 0.4 M☉
Stellar metallicity: 0.0631 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 4.54939 parsecs
Right ascension: 17h36m25.00s
Declination: +68d20m01.23s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,014
Publication date: 2014-07
Discovery locale: Ground
Facility: Lick Observatory
Telescope: 2.4 m Automated Planet Finder Telescope
Instrument: Levy Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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