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HD 75898 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 75898 b

Confirmed exoplanet · Gas Giant

HD 75898 b

Orbiting HD 75898

Discovered in 2007 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 75898 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Radial Velocity
Radius: 13.2 R⊕
Mass: 810.462438 M⊕
Orbit: 422.82 days
Distance: 78.0505 pc

Planet profile

Orbit and physical properties

Orbital period: 422.82 days
Semi-major axis: 1.2025 AU
Eccentricity: 0.105
Radius: 13.2 Earth radii
Mass: 810.462438 Earth masses
Mass provenance: Msini
Density: 1.94 g/cm³
Equilibrium temperature: 335.16 K
Insolation: 1.9945 Earth flux

Host system

Star and system properties

Host star: HD 75898
Stars in system: 1
Known planets in system: 2
Spectral type: F8 V
Stellar temperature: 6,122 K
Stellar radius: 1.55 R☉
Stellar mass: 1.295 M☉
Stellar metallicity: 0.29 dex
Stellar age: 3.2 Gyr
Distance: 78.0505 parsecs
Right ascension: 08h53m50.69s
Declination: +33d03m24.08s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,007
Publication date: 2007-12
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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