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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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HD 216520 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 216520 c

Confirmed exoplanet · Neptune Like

HD 216520 c

Orbiting HD 216520

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

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of HD 216520 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,020
Method: Radial Velocity
Radius: 3.03 R⊕
Mass: 9.44 M⊕
Orbit: 154.43 days
Distance: 19.552 pc

Planet profile

Orbit and physical properties

Orbital period: 154.43 days
Semi-major axis: 0.528 AU
Eccentricity: 0.12
Radius: 3.03 Earth radii
Mass: 9.44 Earth masses
Mass provenance: Msini
Density: 1.86 g/cm³
Equilibrium temperature: 295.22 K
Insolation: 1.2669 Earth flux

Host system

Star and system properties

Host star: HD 216520
Stars in system: 1
Known planets in system: 2
Spectral type: K2
Stellar temperature: 5,103 K
Stellar radius: 0.76 R☉
Stellar mass: 0.82 M☉
Stellar metallicity: -0.16 dex
Stellar age: 6 Gyr
Distance: 19.552 parsecs
Right ascension: 22h47m30.45s
Declination: +83d41m51.11s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,020
Publication date: 2021-01
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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