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HD 104985 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 104985 b

Confirmed exoplanet · Gas Giant

HD 104985 b

Orbiting HD 104985

Discovered in 2003 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 104985 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,003
Method: Radial Velocity
Radius: 12.8 R⊕
Mass: 1,766.808115 M⊕
Orbit: 199.68 days
Distance: 100.576 pc

Planet profile

Orbit and physical properties

Orbital period: 199.68 days
Semi-major axis: 0.715 AU
Eccentricity: 0.047
Radius: 12.8 Earth radii
Mass: 1,766.808115 Earth masses
Mass provenance: Msini
Density: 4.63 g/cm³
Equilibrium temperature: 901.01 K
Insolation: 115.1548 Earth flux

Host system

Star and system properties

Host star: HD 104985
Stars in system: 1
Known planets in system: 1
Spectral type: G9 III
Stellar temperature: 4,738 K
Stellar radius: 11.12 R☉
Stellar mass: 1.22 M☉
Stellar metallicity: -0.32 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 100.576 parsecs
Right ascension: 12h05m15.79s
Declination: +76d54m19.21s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,003
Publication date: 2003-11
Discovery locale: Ground
Facility: Okayama Astrophysical Observatory
Telescope: 1.88 m Telescope
Instrument: HIDES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 104985 b.

Generic gas giant catalog artwork; not a direct image of HD 104985 b — Apex Andromeda catalog artwork