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HD 103891 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 103891 b

Confirmed exoplanet · Gas Giant

HD 103891 b

Orbiting HD 103891

Discovered in 2022 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 103891 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 13.2 R⊕
Mass: 918.524096 M⊕
Orbit: 1,919 days
Distance: 55.5213 pc

Planet profile

Orbit and physical properties

Orbital period: 1,919 days
Semi-major axis: 3.27 AU
Eccentricity: 0.31
Radius: 13.2 Earth radii
Mass: 918.524096 Earth masses
Mass provenance: Mass
Density: 2.19 g/cm³
Equilibrium temperature: 241.25 K
Insolation: 0.5714 Earth flux

Host system

Star and system properties

Host star: HD 103891
Stars in system: 1
Known planets in system: 1
Spectral type: F9
Stellar temperature: 6,072 K
Stellar radius: 2.22 R☉
Stellar mass: 1.28 M☉
Stellar metallicity: -0.19 dex
Stellar age: 3.68 Gyr
Distance: 55.5213 parsecs
Right ascension: 11h57m45.19s
Declination: -08d32m55.03s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,022
Publication date: 2022-04
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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