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HD 82886 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 82886 b

Confirmed exoplanet · Gas Giant

HD 82886 b

Orbiting HD 82886

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 82886 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.3 R⊕
Mass: 740.5439 M⊕
Orbit: 705 days
Distance: 127.061 pc

Planet profile

Orbit and physical properties

Orbital period: 705 days
Semi-major axis: 1.58 AU
Eccentricity: 0.07
Radius: 13.3 Earth radii
Mass: 740.5439 Earth masses
Mass provenance: Msini
Density: 1.73 g/cm³
Equilibrium temperature: 435.78 K
Insolation: 5.568 Earth flux

Host system

Star and system properties

Host star: HD 82886
Stars in system: 1
Known planets in system: 1
Spectral type: G0
Stellar temperature: 4,953 K
Stellar radius: 5.26 R☉
Stellar mass: 2.53 M☉
Stellar metallicity: -0.31 dex
Stellar age: 7 Gyr
Distance: 127.061 parsecs
Right ascension: 09h35m45.20s
Declination: +34d46m50.12s

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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