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HD 139357 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 139357 b

Confirmed exoplanet · Gas Giant

HD 139357 b

Orbiting HD 139357

Discovered in 2008 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 139357 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,008
Method: Radial Velocity
Radius: 12.1 R⊕
Mass: 6,315.568276 M⊕
Orbit: 1,124.79139 days
Distance: 112.09 pc

Planet profile

Orbit and physical properties

Orbital period: 1,124.79139 days
Semi-major axis: 2.949 AU
Eccentricity: 0.099
Radius: 12.1 Earth radii
Mass: 6,315.568276 Earth masses
Mass provenance: Mass
Density: 19.6 g/cm³
Equilibrium temperature: 446.97 K
Insolation: 7.649 Earth flux

Host system

Star and system properties

Host star: HD 139357
Stars in system: 1
Known planets in system: 1
Spectral type: K4 III
Stellar temperature: 4,700 K
Stellar radius: 11.47 R☉
Stellar mass: 2.69 M☉
Stellar metallicity: -0.13 dex
Stellar age: 3.07 Gyr
Distance: 112.09 parsecs
Right ascension: 15h35m16.17s
Declination: +53d55m19.74s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,008
Publication date: 2009-06
Discovery locale: Ground
Facility: Thueringer Landessternwarte Tautenburg
Telescope: 2.0 m Alfred Jensch Telescope
Instrument: Coude Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 139357 b.

Generic gas giant catalog artwork; not a direct image of HD 139357 b — Apex Andromeda catalog artwork