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HD 31527 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 31527 d

Confirmed exoplanet · Neptune Like

HD 31527 d

Orbiting HD 31527

Discovered in 2019 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 31527 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Radial Velocity
Radius: 3.46 R⊕
Mass: 11.82 M⊕
Orbit: 271.6737 days
Distance: 38.4473 pc

Planet profile

Orbit and physical properties

Orbital period: 271.6737 days
Semi-major axis: 0.8098 AU
Eccentricity: 0.24
Radius: 3.46 Earth radii
Mass: 11.82 Earth masses
Mass provenance: Msini
Density: 1.57 g/cm³
Equilibrium temperature: 327.48 K
Insolation: 1.8299 Earth flux

Host system

Star and system properties

Host star: HD 31527
Stars in system: 1
Known planets in system: 3
Spectral type: G2 V
Stellar temperature: 5,898 K
Stellar radius: 1.073694 R☉
Stellar mass: 0.96 M☉
Stellar metallicity: -0.17 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 38.4473 parsecs
Right ascension: 04h55m38.31s
Declination: -23d14m28.74s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,019
Publication date: 2019-02
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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