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HD 30856 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 30856 b

Confirmed exoplanet · Gas Giant

HD 30856 b

Orbiting HD 30856

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 30856 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.5 R⊕
Mass: 491.68301 M⊕
Orbit: 847 days
Distance: 131.199 pc

Planet profile

Orbit and physical properties

Orbital period: 847 days
Semi-major axis: 1.85 AU
Eccentricity: 0.061
Radius: 13.5 Earth radii
Mass: 491.68301 Earth masses
Mass provenance: Msini
Density: 1.1 g/cm³
Equilibrium temperature: 364.02 K
Insolation: 2.8926 Earth flux

Host system

Star and system properties

Host star: HD 30856
Stars in system: 2
Known planets in system: 1
Spectral type: K0 III
Stellar temperature: 4,895 K
Stellar radius: 4.4 R☉
Stellar mass: 1.17 M☉
Stellar metallicity: -0.06 dex
Stellar age: 3.8 Gyr
Distance: 131.199 parsecs
Right ascension: 04h50m17.88s
Declination: -24d22m08.14s

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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