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GJ 179 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 179 b

Confirmed exoplanet · Gas Giant

GJ 179 b

Orbiting GJ 179

Discovered in 2009 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic gas giant catalog artwork; not a direct image of GJ 179 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,009
Method: Radial Velocity
Radius: 13.8 R⊕
Mass: 301.936987 M⊕
Orbit: 2,288 days
Distance: 12.356 pc

Planet profile

Orbit and physical properties

Orbital period: 2,288 days
Semi-major axis: 2.41 AU
Eccentricity: 0.21
Radius: 13.8 Earth radii
Mass: 301.936987 Earth masses
Mass provenance: Mass
Density: 0.631 g/cm³
Equilibrium temperature: 64.53 K
Insolation: 0.0028 Earth flux

Host system

Star and system properties

Host star: GJ 179
Stars in system: 1
Known planets in system: 1
Spectral type: M3.5 V
Stellar temperature: 3,370 K
Stellar radius: 0.38 R☉
Stellar mass: 0.357 M☉
Stellar metallicity: 0.3 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 12.356 parsecs
Right ascension: 04h52m05.89s
Declination: +06d28m30.84s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,009
Publication date: 2010-10
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

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