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HD 137388 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 137388 b

Confirmed exoplanet · Gas Giant

HD 137388 b

Orbiting HD 137388

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 137388 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 9.32 R⊕
Mass: 63.566 M⊕
Orbit: 330 days
Distance: 40.4841 pc

Planet profile

Orbit and physical properties

Orbital period: 330 days
Semi-major axis: 0.89 AU
Eccentricity: 0.36
Radius: 9.32 Earth radii
Mass: 63.566 Earth masses
Mass provenance: Msini
Density: 0.431 g/cm³
Equilibrium temperature: 248.42 K
Insolation: 0.5807 Earth flux

Host system

Star and system properties

Host star: HD 137388
Stars in system: 1
Known planets in system: 1
Spectral type: K2 IV
Stellar temperature: 5,181 K
Stellar radius: 0.88 R☉
Stellar mass: 0.68 M☉
Stellar metallicity: 0.19 dex
Stellar age: 6.45 Gyr
Distance: 40.4841 parsecs
Right ascension: 15h35m39.62s
Declination: -80d12m15.90s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2011-11
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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