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HD 18143 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 18143 c

Confirmed exoplanet · Gas Giant

HD 18143 c

Orbiting HD 18143

Discovered in 2022 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 18143 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 3,177.648413 M⊕
Orbit: 28,982.41764 days
Distance: 22.5243 pc

Planet profile

Orbit and physical properties

Orbital period: 28,982.41764 days
Semi-major axis: 17.53 AU
Eccentricity: 0.194
Radius: 12.5 Earth radii
Mass: 3,177.648413 Earth masses
Mass provenance: Mass
Density: 8.94 g/cm³
Equilibrium temperature: 54.55 K
Insolation: 0.0016 Earth flux

Host system

Star and system properties

Host star: HD 18143
Stars in system: 1
Known planets in system: 2
Spectral type: K2
Stellar temperature: 5,078 K
Stellar radius: 0.87 R☉
Stellar mass: 0.85 M☉
Stellar metallicity: 0.28 dex
Stellar age: 9.4 Gyr
Distance: 22.5243 parsecs
Right ascension: 02h55m39.37s
Declination: +26d52m20.58s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,022
Publication date: 2022-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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