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HD 89744 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 89744 b

Confirmed exoplanet · Gas Giant

HD 89744 b

Orbiting HD 89744

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 89744 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 1,999
Method: Radial Velocity
Radius: 12.6 R⊕
Mass: 2,653.8805 M⊕
Orbit: 256.78 days
Distance: 38.6364 pc

Planet profile

Orbit and physical properties

Orbital period: 256.78 days
Semi-major axis: 0.917 AU
Eccentricity: 0.677
Radius: 12.6 Earth radii
Mass: 2,653.8805 Earth masses
Mass provenance: Msini
Density: 7.29 g/cm³
Equilibrium temperature: 462.62 K
Insolation: 7.4311 Earth flux

Host system

Star and system properties

Host star: HD 89744
Stars in system: 2
Known planets in system: 1
Spectral type: F7 V
Stellar temperature: 6,291 K
Stellar radius: 2.13257 R☉
Stellar mass: 1.86 M☉
Stellar metallicity: 0.2238 dex
Stellar age: 1.88 Gyr
Distance: 38.6364 parsecs
Right ascension: 10h22m10.40s
Declination: +41d13m44.17s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 1,999
Publication date: 2000-04
Discovery locale: Ground
Facility: Fred Lawrence Whipple Observatory
Telescope: 1.5 m Tillinghast Reflector Telescope
Instrument: AFOE Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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