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HD 38801 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 38801 b

Confirmed exoplanet · Gas Giant

HD 38801 b

Orbiting HD 38801

Discovered in 2009 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 38801 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,009
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 3,082.31534 M⊕
Orbit: 685.25 days
Distance: 91.4349 pc

Planet profile

Orbit and physical properties

Orbital period: 685.25 days
Semi-major axis: 1.623 AU
Eccentricity: 0.017
Radius: 12.5 Earth radii
Mass: 3,082.31534 Earth masses
Mass provenance: Msini
Density: 8.67 g/cm³
Equilibrium temperature: 287.8 K
Insolation: 1.7311 Earth flux

Host system

Star and system properties

Host star: HD 38801
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 5,338 K
Stellar radius: 2.029 R☉
Stellar mass: 1.207 M☉
Stellar metallicity: 0.25 dex
Stellar age: 6.072 Gyr
Distance: 91.4349 parsecs
Right ascension: 05h47m59.12s
Declination: -08d19m40.89s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,009
Publication date: 2010-05
Discovery locale: Ground
Facility: Subaru Telescope
Telescope: 8.2 m Subaru Telescope
Instrument: HDS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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