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HD 216770 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 216770 b

Confirmed exoplanet · Gas Giant

HD 216770 b

Orbiting HD 216770

Discovered in 2003 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 216770 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,003
Method: Radial Velocity
Radius: 14.1 R⊕
Mass: 181.1631 M⊕
Orbit: 118.45 days
Distance: 36.6625 pc

Planet profile

Orbit and physical properties

Orbital period: 118.45 days
Semi-major axis: 0.46 AU
Eccentricity: 0.37
Radius: 14.1 Earth radii
Mass: 181.1631 Earth masses
Mass provenance: Msini
Density: 0.355 g/cm³
Equilibrium temperature: 370.18 K
Insolation: 3.7539 Earth flux

Host system

Star and system properties

Host star: HD 216770
Stars in system: 1
Known planets in system: 1
Spectral type: G9 V CN+1
Stellar temperature: 5,399 K
Stellar radius: 0.93 R☉
Stellar mass: 0.74 M☉
Stellar metallicity: 0.27 dex
Stellar age: 3.1 Gyr
Distance: 36.6625 parsecs
Right ascension: 22h55m53.97s
Declination: -26d39m34.30s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,003
Publication date: 2004-02
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 1.2 m Leonhard Euler Telescope
Instrument: CORALIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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