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HD 181234 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 181234 b

Confirmed exoplanet · Gas Giant

HD 181234 b

Orbiting HD 181234

Discovered in 2019 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 181234 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 2,980.912629 M⊕
Orbit: 7,593.40512 days
Distance: 47.7458 pc

Planet profile

Orbit and physical properties

Orbital period: 7,593.40512 days
Semi-major axis: 7.427 AU
Eccentricity: 0.726
Radius: 12.5 Earth radii
Mass: 2,980.912629 Earth masses
Mass provenance: Mass
Density: 8.39 g/cm³
Equilibrium temperature: 98.09 K
Insolation: 0.0144 Earth flux

Host system

Star and system properties

Host star: HD 181234
Stars in system: 1
Known planets in system: 1
Spectral type: G8 IV
Stellar temperature: 5,386 K
Stellar radius: 1.059423 R☉
Stellar mass: 0.94 M☉
Stellar metallicity: 0.32 dex
Stellar age: 6.32 Gyr
Distance: 47.7458 parsecs
Right ascension: 19h19m59.97s
Declination: -09d19m29.89s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,019
Publication date: 2019-05
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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