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HD 8574 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 8574 b

Confirmed exoplanet · Gas Giant

HD 8574 b

Orbiting HD 8574

Discovered in 2002 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 8574 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,002
Method: Radial Velocity
Radius: 13.4 R⊕
Mass: 645.1949 M⊕
Orbit: 227 days
Distance: 44.8264 pc

Planet profile

Orbit and physical properties

Orbital period: 227 days
Semi-major axis: 0.76 AU
Eccentricity: 0.3
Radius: 13.4 Earth radii
Mass: 645.1949 Earth masses
Mass provenance: Msini
Density: 1.47 g/cm³
Equilibrium temperature: 394.03 K
Insolation: 4.1197 Earth flux

Host system

Star and system properties

Host star: HD 8574
Stars in system: 1
Known planets in system: 1
Spectral type: F8
Stellar temperature: 6,064 K
Stellar radius: 1.38 R☉
Stellar mass: 1.34 M☉
Stellar metallicity: 0.01 dex
Stellar age: 5.6 Gyr
Distance: 44.8264 parsecs
Right ascension: 01h25m12.81s
Declination: +28d33m57.66s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,002
Publication date: 2003-11
Discovery locale: Ground
Facility: Haute-Provence Observatory
Telescope: 1.93 m Telescope
Instrument: ELODIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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