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GJ 328 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 328 b

Confirmed exoplanet · Gas Giant

GJ 328 b

Orbiting GJ 328

Discovered in 2013 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 328 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,013
Method: Radial Velocity
Radius: 13.3 R⊕
Mass: 797.749302 M⊕
Orbit: 3,771 days
Distance: 20.5266 pc

Planet profile

Orbit and physical properties

Orbital period: 3,771 days
Semi-major axis: 4.11 AU
Eccentricity: 0.227
Radius: 13.3 Earth radii
Mass: 797.749302 Earth masses
Mass provenance: Msini
Density: 1.86 g/cm³
Equilibrium temperature: 73.57 K
Insolation: 0.0049 Earth flux

Host system

Star and system properties

Host star: GJ 328
Stars in system: 1
Known planets in system: 2
Spectral type: M0.0
Stellar temperature: 3,897 K
Stellar radius: 0.63 R☉
Stellar mass: 0.65 M☉
Stellar metallicity: -0.06 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 20.5266 parsecs
Right ascension: 08h55m07.67s
Declination: +01d32m31.20s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,013
Publication date: 2013-09
Discovery locale: Ground
Facility: McDonald Observatory
Telescope: 9.2 m Hobby-Eberly Telescope
Instrument: High Resolution Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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