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HD 222582 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 222582 b

Confirmed exoplanet · Gas Giant

HD 222582 b

Orbiting HD 222582

Discovered in 1999 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 222582 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 1,999
Method: Radial Velocity
Radius: 12.6 R⊕
Mass: 2,660.2371 M⊕
Orbit: 572.38 days
Distance: 42.1586 pc

Planet profile

Orbit and physical properties

Orbital period: 572.38 days
Semi-major axis: 1.34 AU
Eccentricity: 0.73
Radius: 12.6 Earth radii
Mass: 2,660.2371 Earth masses
Mass provenance: Msini
Density: 7.31 g/cm³
Equilibrium temperature: 256.39 K
Insolation: 0.7253 Earth flux

Host system

Star and system properties

Host star: HD 222582
Stars in system: 2
Known planets in system: 1
Spectral type: G5 V
Stellar temperature: 5,790 K
Stellar radius: 1.13 R☉
Stellar mass: 1.12 M☉
Stellar metallicity: 0.01 dex
Stellar age: 10.24 Gyr
Distance: 42.1586 parsecs
Right ascension: 23h41m51.38s
Declination: -05d59m10.46s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 1,999
Publication date: 2000-06
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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