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HD 164922 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 164922 d

Confirmed exoplanet · Super Earth

HD 164922 d

Orbiting HD 164922

Discovered in 2020 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of HD 164922 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,020
Method: Radial Velocity
Radius: 1.83 R⊕
Mass: 4 M⊕
Orbit: 12.458 days
Distance: 22.0016 pc

Planet profile

Orbit and physical properties

Orbital period: 12.458 days
Semi-major axis: 0.103 AU
Eccentricity: 0.12
Radius: 1.83 Earth radii
Mass: 4 Earth masses
Mass provenance: Msini
Density: 3.59 g/cm³
Equilibrium temperature: 787.68 K
Insolation: 66.9243 Earth flux

Host system

Star and system properties

Host star: HD 164922
Stars in system: 1
Known planets in system: 4
Spectral type: G9 V
Stellar temperature: 5,390 K
Stellar radius: 0.946 R☉
Stellar mass: 0.926 M☉
Stellar metallicity: 0.18 dex
Stellar age: 9.58 Gyr
Distance: 22.0016 parsecs
Right ascension: 18h02m31.31s
Declination: +26d18m37.47s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,020
Publication date: 2020-07
Discovery locale: Ground
Facility: Roque de los Muchachos Observatory
Telescope: 3.58 m Telescopio Nazionale Galileo
Instrument: HARPS-N Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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