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HD 134987 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 134987 b

Confirmed exoplanet · Gas Giant

HD 134987 b

Orbiting HD 134987

Discovered in 1999 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 134987 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 1,999
Method: Radial Velocity
Radius: 13.5 R⊕
Mass: 511.7063 M⊕
Orbit: 258.17999 days
Distance: 26.1804 pc

Planet profile

Orbit and physical properties

Orbital period: 258.17999 days
Semi-major axis: 0.81 AU
Eccentricity: 0.23
Radius: 13.5 Earth radii
Mass: 511.7063 Earth masses
Mass provenance: Msini
Density: 1.14 g/cm³
Equilibrium temperature: 339.45 K
Insolation: 2.7435 Earth flux

Host system

Star and system properties

Host star: HD 134987
Stars in system: 1
Known planets in system: 2
Spectral type: G5 V
Stellar temperature: 5,736 K
Stellar radius: 1.22 R☉
Stellar mass: 1.1 M☉
Stellar metallicity: 0.28 dex
Stellar age: 8.4 Gyr
Distance: 26.1804 parsecs
Right ascension: 15h13m28.21s
Declination: -25d18m34.82s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 1,999
Publication date: 2000-06
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 134987 b.

Generic gas giant catalog artwork; not a direct image of HD 134987 b — Apex Andromeda catalog artwork