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HD 217786 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 217786 c

Confirmed exoplanet · Neptune Like

HD 217786 c

Orbiting HD 217786

Discovered in 2022 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 217786 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 2.61 R⊕
Mass: 7.310053 M⊕
Orbit: 2.52221 days
Distance: 55.4847 pc

Planet profile

Orbit and physical properties

Orbital period: 2.52221 days
Semi-major axis: 0.038 AU
Eccentricity: 0.399
Radius: 2.61 Earth radii
Mass: 7.310053 Earth masses
Mass provenance: Msini
Density: 2.26 g/cm³
Equilibrium temperature: 1,663.13 K
Insolation: 1,308.8643 Earth flux

Host system

Star and system properties

Host star: HD 217786
Stars in system: 2
Known planets in system: 2
Spectral type: F8 V
Stellar temperature: 5,966 K
Stellar radius: 1.27 R☉
Stellar mass: 1.14 M☉
Stellar metallicity: -0.135 dex
Stellar age: 7.6 Gyr
Distance: 55.4847 parsecs
Right ascension: 23h03m08.11s
Declination: -00d25m49.29s

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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