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HD 158996 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 158996 b

Confirmed exoplanet · Gas Giant

HD 158996 b

Orbiting HD 158996

Discovered in 2018 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 158996 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Radial Velocity
Radius: 12.3 R⊕
Mass: 4,449.62 M⊕
Orbit: 820.2 days
Distance: 283.659 pc

Planet profile

Orbit and physical properties

Orbital period: 820.2 days
Semi-major axis: 2.1 AU
Eccentricity: 0.13
Radius: 12.3 Earth radii
Mass: 4,449.62 Earth masses
Mass provenance: Msini
Density: 13.1 g/cm³
Equilibrium temperature: 960.27 K
Insolation: 234.6259 Earth flux

Host system

Star and system properties

Host star: HD 158996
Stars in system: 1
Known planets in system: 1
Spectral type: K5 III
Stellar temperature: 4,069 K
Stellar radius: 50.3 R☉
Stellar mass: 1.8 M☉
Stellar metallicity: -0.2 dex
Stellar age: 1.6 Gyr
Distance: 283.659 parsecs
Right ascension: 17h19m37.23s
Declination: +80d08m11.05s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,018
Publication date: 2018-02
Discovery locale: Ground
Facility: Bohyunsan Optical Astronomical Observatory
Telescope: 1.8 m Telescope
Instrument: BOES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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