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HD 189733 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 189733 b

Confirmed exoplanet · Gas Giant

HD 189733 b

Orbiting HD 189733

Discovered in 2005 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Artist’s impression of the deep blue planet HD 189733b, an official ESA/Hubble exoplanet image or artist concept — Sourced object or system artworkNASA, ESA, M. Kornmesser

Discovery: 2,005
Method: Radial Velocity
Radius: 12.66617 R⊕
Mass: 359.1479 M⊕
Orbit: 2.218576 days
Distance: 19.7638 pc

Planet profile

Orbit and physical properties

Orbital period: 2.218576 days
Semi-major axis: 0.03126 AU
Eccentricity: 0
Radius: 12.66617 Earth radii
Mass: 359.1479 Earth masses
Mass provenance: Mass
Density: 0.943 g/cm³
Equilibrium temperature: 1,209 K
Insolation: 356 Earth flux

Host system

Star and system properties

Host star: HD 189733
Stars in system: 2
Known planets in system: 1
Spectral type: K2 V
Stellar temperature: 5,052 K
Stellar radius: 0.75 R☉
Stellar mass: 0.79 M☉
Stellar metallicity: -0.02 dex
Stellar age: 1.4 Gyr
Distance: 19.7638 parsecs
Right ascension: 20h00m43.71s
Declination: +22d42m35.19s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,005
Publication date: 2005-12
Discovery locale: Ground
Facility: Haute-Provence Observatory
Telescope: 1.93 m Telescope
Instrument: ELODIE Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 189733 b.

Artist’s impression of the deep blue planet HD 189733b, an official ESA/Hubble exoplanet image or artist concept — NASA, ESA, M. KornmesserSource ↗