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HD 20782 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 20782 b

Confirmed exoplanet · Gas Giant

HD 20782 b

Orbiting HD 20782

Discovered in 2006 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 20782 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,006
Method: Radial Velocity
Radius: 13.6 R⊕
Mass: 472.83 M⊕
Orbit: 597.0643 days
Distance: 35.9864 pc

Planet profile

Orbit and physical properties

Orbital period: 597.0643 days
Semi-major axis: 1.3649 AU
Eccentricity: 0.95
Radius: 13.6 Earth radii
Mass: 472.83 Earth masses
Mass provenance: Msini
Density: 1.03 g/cm³
Equilibrium temperature: 253.34 K
Insolation: 0.6863 Earth flux

Host system

Star and system properties

Host star: HD 20782
Stars in system: 2
Known planets in system: 5
Spectral type: G1.5 V
Stellar temperature: 5,782.13 K
Stellar radius: 1.12681 R☉
Stellar mass: 1.04 M☉
Stellar metallicity: -0.0537 dex
Stellar age: 5.53 Gyr
Distance: 35.9864 parsecs
Right ascension: 03h20m03.99s
Declination: -28d51m15.67s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,006
Publication date: 2006-06
Discovery locale: Ground
Facility: Anglo-Australian Telescope
Telescope: 3.9 m Anglo-Australian Telescope
Instrument: UCLES Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 20782 b.

Generic gas giant catalog artwork; not a direct image of HD 20782 b — Apex Andromeda catalog artwork