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HD 5891 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 5891 b

Confirmed exoplanet · Gas Giant

HD 5891 b

Orbiting HD 5891

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 5891 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 12.6 R⊕
Mass: 2,425.0429 M⊕
Orbit: 177.11 days
Distance: 283.502 pc

Planet profile

Orbit and physical properties

Orbital period: 177.11 days
Semi-major axis: 0.64 AU
Eccentricity: 0.07
Radius: 12.6 Earth radii
Mass: 2,425.0429 Earth masses
Mass provenance: Msini
Density: 6.66 g/cm³
Equilibrium temperature: 918.78 K
Insolation: 96.1914 Earth flux

Host system

Star and system properties

Host star: HD 5891
Stars in system: 1
Known planets in system: 1
Spectral type: G5
Stellar temperature: 4,673 K
Stellar radius: 10.64 R☉
Stellar mass: 1.93 M☉
Stellar metallicity: -0.37 dex
Stellar age: 1.5 Gyr
Distance: 283.502 parsecs
Right ascension: 01h00m33.20s
Declination: +20d17m32.33s

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 ↗

Visual archive

Gallery

One image from HD 5891 b.

Generic gas giant catalog artwork; not a direct image of HD 5891 b — Apex Andromeda catalog artwork

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