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HD 40307 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 40307 d

Confirmed exoplanet · Gas Giant

HD 40307 d

Orbiting HD 40307

Discovered in 2009 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 40307 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,009
Method: Radial Velocity
Radius: Not reported by the NASA Exoplanet Archive
Mass: 1,775.389482 M⊕
Orbit: 20.432 days
Distance: 12.9363 pc

Planet profile

Orbit and physical properties

Orbital period: 20.432 days
Semi-major axis: 0.1321 AU
Eccentricity: 0.07
Radius: Not reported by the NASA Exoplanet Archive
Mass: 1,775.389482 Earth masses
Mass provenance: Mass
Density: Not reported by the NASA Exoplanet Archive
Equilibrium temperature: 541 K
Insolation: 13.1581 Earth flux

Host system

Star and system properties

Host star: HD 40307
Stars in system: 1
Known planets in system: 5
Spectral type: K2.5 V
Stellar temperature: 4,956 K
Stellar radius: 0.716684 R☉
Stellar mass: 0.77 M☉
Stellar metallicity: -0.31 dex
Stellar age: 4.5 Gyr
Distance: 12.9363 parsecs
Right ascension: 05h54m04.13s
Declination: -60d01m25.42s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,009
Publication date: 2009-01
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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