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HD 206255 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 206255 b

Confirmed exoplanet · Gas Giant

HD 206255 b

Orbiting HD 206255

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 206255 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Radial Velocity
Radius: 6.47 R⊕
Mass: 34.2 M⊕
Orbit: 96.045 days
Distance: 75.2363 pc

Planet profile

Orbit and physical properties

Orbital period: 96.045 days
Semi-major axis: 0.461 AU
Eccentricity: 0.23
Radius: 6.47 Earth radii
Mass: 34.2 Earth masses
Mass provenance: Msini
Density: 0.694 g/cm³
Equilibrium temperature: 596.48 K
Insolation: 21.0939 Earth flux

Host system

Star and system properties

Host star: HD 206255
Stars in system: 1
Known planets in system: 1
Spectral type: G5 IV/V
Stellar temperature: 5,635 K
Stellar radius: 2.221489 R☉
Stellar mass: 1.42 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 75.2363 parsecs
Right ascension: 21h42m22.03s
Declination: -50d05m36.92s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,019
Publication date: 2019-06
Discovery locale: Ground
Facility: Las Campanas Observatory
Telescope: 6.5 m Magellan II Clay Telescope
Instrument: Carnegie Planet Finder Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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