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HD 220842 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 220842 b

Confirmed exoplanet · Gas Giant

HD 220842 b

Orbiting HD 220842

Discovered in 2016 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 220842 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,016
Method: Radial Velocity
Radius: 13.1 R⊕
Mass: 1,010.6994 M⊕
Orbit: 218.47 days
Distance: 64.6498 pc

Planet profile

Orbit and physical properties

Orbital period: 218.47 days
Semi-major axis: 0.74 AU
Eccentricity: 0.404
Radius: 13.1 Earth radii
Mass: 1,010.6994 Earth masses
Mass provenance: Msini
Density: 2.47 g/cm³
Equilibrium temperature: 397.62 K
Insolation: 4.155 Earth flux

Host system

Star and system properties

Host star: HD 220842
Stars in system: 2
Known planets in system: 1
Spectral type: F8
Stellar temperature: 5,960 K
Stellar radius: 1.41647 R☉
Stellar mass: 1.13 M☉
Stellar metallicity: -0.17 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 64.6498 parsecs
Right ascension: 23h26m36.82s
Declination: +56d53m13.71s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,016
Publication date: 2016-04
Discovery locale: Ground
Facility: Haute-Provence Observatory
Telescope: 1.93 m Telescope
Instrument: SOPHIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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