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HD 158038 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 158038 b

Confirmed exoplanet · Gas Giant

HD 158038 b

Orbiting HD 158038

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 158038 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.5 R⊕
Mass: 486.2799 M⊕
Orbit: 521 days
Distance: 94.8625 pc

Planet profile

Orbit and physical properties

Orbital period: 521 days
Semi-major axis: 1.5 AU
Eccentricity: 0.29
Radius: 13.5 Earth radii
Mass: 486.2799 Earth masses
Mass provenance: Msini
Density: 1.09 g/cm³
Equilibrium temperature: 405.91 K
Insolation: 5.2889 Earth flux

Host system

Star and system properties

Host star: HD 158038
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 4,860 K
Stellar radius: 4.5 R☉
Stellar mass: 1.3 M☉
Stellar metallicity: 0.19 dex
Stellar age: 2.5 Gyr
Distance: 94.8625 parsecs
Right ascension: 17h25m45.49s
Declination: +27d18m11.06s

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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