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HD 111998 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 111998 b

Confirmed exoplanet · Gas Giant

HD 111998 b

Orbiting HD 111998

Discovered in 2016 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 111998 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,016
Method: Radial Velocity
Radius: 12.9 R⊕
Mass: 1,525.576354 M⊕
Orbit: 810 days
Distance: 33.2237 pc

Planet profile

Orbit and physical properties

Orbital period: 810 days
Semi-major axis: 1.91 AU
Eccentricity: 0.13
Radius: 12.9 Earth radii
Mass: 1,525.576354 Earth masses
Mass provenance: Mass
Density: 3.91 g/cm³
Equilibrium temperature: 275.49 K
Insolation: 0.8918 Earth flux

Host system

Star and system properties

Host star: HD 111998
Stars in system: 1
Known planets in system: 1
Spectral type: F6 V
Stellar temperature: 6,557 K
Stellar radius: 1.45 R☉
Stellar mass: 1.4 M☉
Stellar metallicity: 0.07 dex
Stellar age: 1.7 Gyr
Distance: 33.2237 parsecs
Right ascension: 12h53m10.88s
Declination: -03d33m11.21s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,016
Publication date: 2017-03
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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