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HD 29021 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 29021 b

Confirmed exoplanet · Gas Giant

HD 29021 b

Orbiting HD 29021

Discovered in 2017 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 29021 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,017
Method: Radial Velocity
Radius: 12.9 R⊕
Mass: 1,420.692979 M⊕
Orbit: 1,365 days
Distance: 30.9939 pc

Planet profile

Orbit and physical properties

Orbital period: 1,365 days
Semi-major axis: 2.294 AU
Eccentricity: 0.453
Radius: 12.9 Earth radii
Mass: 1,420.692979 Earth masses
Mass provenance: Mass
Density: 3.64 g/cm³
Equilibrium temperature: 163.2 K
Insolation: 0.1252 Earth flux

Host system

Star and system properties

Host star: HD 29021
Stars in system: 1
Known planets in system: 1
Spectral type: G5
Stellar temperature: 5,560 K
Stellar radius: 0.85 R☉
Stellar mass: 0.86 M☉
Stellar metallicity: -0.3 dex
Stellar age: 5.5 Gyr
Distance: 30.9939 parsecs
Right ascension: 04h37m52.35s
Declination: +60d40m34.67s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,017
Publication date: 2017-05
Discovery locale: Ground
Facility: Haute-Provence Observatory
Telescope: 1.93 m Telescope
Instrument: ELODIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 29021 b.

Generic gas giant catalog artwork; not a direct image of HD 29021 b — Apex Andromeda catalog artwork

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