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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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alf Ari b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/alf Ari b

Confirmed exoplanet · Gas Giant

alf Ari b

Orbiting alf Ari

Discovered in 2010 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 alf Ari b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,010
Method: Radial Velocity
Radius: 13.4 R⊕
Mass: 572.07 M⊕
Orbit: 380.8 days
Distance: 20.21019 pc

Planet profile

Orbit and physical properties

Orbital period: 380.8 days
Semi-major axis: 1.2 AU
Eccentricity: 0.25
Radius: 13.4 Earth radii
Mass: 572.07 Earth masses
Mass provenance: Msini
Density: 1.31 g/cm³
Equilibrium temperature: 747.22 K
Insolation: 59.6537 Earth flux

Host system

Star and system properties

Host star: alf Ari
Stars in system: 1
Known planets in system: 1
Spectral type: K2III
Stellar temperature: 4,553 K
Stellar radius: 13.9 R☉
Stellar mass: 1.5 M☉
Stellar metallicity: -0.09 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 20.21019 parsecs
Right ascension: 02h07m10.39s
Declination: +23d27m44.72s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,010
Publication date: 2011-05
Discovery locale: Ground
Facility: Bohyunsan Optical Astronomical Observatory
Telescope: 1.8 m Telescope
Instrument: BOES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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