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HD 33142 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 33142 b

Confirmed exoplanet · Gas Giant

HD 33142 b

Orbiting HD 33142

Discovered in 2011 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 HD 33142 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.7 R⊕
Mass: 400.463793 M⊕
Orbit: 330 days
Distance: 121.375 pc

Planet profile

Orbit and physical properties

Orbital period: 330 days
Semi-major axis: 1.074 AU
Eccentricity: 0.049
Radius: 13.7 Earth radii
Mass: 400.463793 Earth masses
Mass provenance: Msini
Density: 0.856 g/cm³
Equilibrium temperature: 477.5 K
Insolation: 8.6781 Earth flux

Host system

Star and system properties

Host star: HD 33142
Stars in system: 1
Known planets in system: 3
Spectral type: K0 III
Stellar temperature: 5,025.4 K
Stellar radius: 4.17 R☉
Stellar mass: 1.52 M☉
Stellar metallicity: 0.06 dex
Stellar age: 2.72 Gyr
Distance: 121.375 parsecs
Right ascension: 05h07m35.53s
Declination: -13d59m10.81s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2011-12
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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