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HD 188015 b | Exoplanets | Apex Andromeda | Apex Andromeda

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Planets/Exoplanets/HD 188015 b

Confirmed exoplanet · Gas Giant

HD 188015 b

Orbiting HD 188015

Discovered in 2004 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 188015 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,004
Method: Radial Velocity
Radius: 13.6 R⊕
Mass: 476.72 M⊕
Orbit: 461.2 days
Distance: 50.6706 pc

Planet profile

Orbit and physical properties

Orbital period: 461.2 days
Semi-major axis: 1.203 AU
Eccentricity: 0.137
Radius: 13.6 Earth radii
Mass: 476.72 Earth masses
Mass provenance: Msini
Density: 1.04 g/cm³
Equilibrium temperature: 267.98 K
Insolation: 0.7914 Earth flux

Host system

Star and system properties

Host star: HD 188015
Stars in system: 2
Known planets in system: 1
Spectral type: G5 IV
Stellar temperature: 5,746 K
Stellar radius: 1.125296 R☉
Stellar mass: 1.09 M☉
Stellar metallicity: 0.289 dex
Stellar age: 6.61 Gyr
Distance: 50.6706 parsecs
Right ascension: 19h52m04.60s
Declination: +28d05m59.92s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,004
Publication date: 2005-01
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 188015 b.

Generic gas giant catalog artwork; not a direct image of HD 188015 b — Apex Andromeda catalog artwork