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HD 2039 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 2039 b

Confirmed exoplanet · Gas Giant

HD 2039 b

Orbiting HD 2039

Discovered in 2002 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 2039 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,002
Method: Radial Velocity
Radius: 12.7 R⊕
Mass: 1,999.1507 M⊕
Orbit: 1,120 days
Distance: 85.6922 pc

Planet profile

Orbit and physical properties

Orbital period: 1,120 days
Semi-major axis: 2.2 AU
Eccentricity: 0.71
Radius: 12.7 Earth radii
Mass: 1,999.1507 Earth masses
Mass provenance: Msini
Density: 5.36 g/cm³
Equilibrium temperature: 210.84 K
Insolation: 0.3229 Earth flux

Host system

Star and system properties

Host star: HD 2039
Stars in system: 1
Known planets in system: 1
Spectral type: G2/G3 IV/V
Stellar temperature: 5,945 K
Stellar radius: 1.19 R☉
Stellar mass: 1.23 M☉
Stellar metallicity: 0.3 dex
Stellar age: 6 Gyr
Distance: 85.6922 parsecs
Right ascension: 00h24m20.43s
Declination: -56d38m59.96s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,002
Publication date: 2003-04
Discovery locale: Ground
Facility: Anglo-Australian Telescope
Telescope: 3.9 m Anglo-Australian Telescope
Instrument: UCLES Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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