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GJ 3021 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 3021 b

Confirmed exoplanet · Gas Giant

GJ 3021 b

Orbiting GJ 3021

Discovered in 2000 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 3021 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,000
Method: Radial Velocity
Radius: 13.1 R⊕
Mass: 1,071.04 M⊕
Orbit: 133.71 days
Distance: 17.5559 pc

Planet profile

Orbit and physical properties

Orbital period: 133.71 days
Semi-major axis: 0.49 AU
Eccentricity: 0.511
Radius: 13.1 Earth radii
Mass: 1,071.04 Earth masses
Mass provenance: Msini
Density: 2.62 g/cm³
Equilibrium temperature: 350 K
Insolation: 2.7517 Earth flux

Host system

Star and system properties

Host star: GJ 3021
Stars in system: 2
Known planets in system: 1
Spectral type: G6 V
Stellar temperature: 5,540 K
Stellar radius: 0.9 R☉
Stellar mass: 0.9 M☉
Stellar metallicity: 0.1 dex
Stellar age: 0.37 Gyr
Distance: 17.5559 parsecs
Right ascension: 00h16m15.22s
Declination: -79d51m05.12s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,000
Publication date: 2001-08
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 1.2 m Leonhard Euler Telescope
Instrument: CORALIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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