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HD 4308 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 4308 b

Confirmed exoplanet · Neptune Like

HD 4308 b

Orbiting HD 4308

Discovered in 2005 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 4308 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,005
Method: Radial Velocity
Radius: 4.12 R⊕
Mass: 15.8915 M⊕
Orbit: 15.56 days
Distance: 22.0158 pc

Planet profile

Orbit and physical properties

Orbital period: 15.56 days
Semi-major axis: 0.12 AU
Eccentricity: 0
Radius: 4.12 Earth radii
Mass: 15.8915 Earth masses
Mass provenance: Msini
Density: 1.25 g/cm³
Equilibrium temperature: 799.37 K
Insolation: 68.8078 Earth flux

Host system

Star and system properties

Host star: HD 4308
Stars in system: 1
Known planets in system: 1
Spectral type: G5V
Stellar temperature: 5,686 K
Stellar radius: 1.02 R☉
Stellar mass: 0.93 M☉
Stellar metallicity: -0.35 dex
Stellar age: 4.3 Gyr
Distance: 22.0158 parsecs
Right ascension: 00h44m39.66s
Declination: -65d39m09.78s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,005
Publication date: 2006-02
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 4308 b.

Generic neptune like catalog artwork; not a direct image of HD 4308 b — Apex Andromeda catalog artwork