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14 Her b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/14 Her b

Confirmed exoplanet · Gas Giant

14 Her b

Orbiting 14 Her

Discovered in 2002 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

14 Herculis c, an official ESA/Webb exoplanet image or artist concept — Sourced object or system artworkNASA, ESA, CSA, STScI, W. Balmer (JHU), D. Bardalez Gagliuffi (Amherst College)

Discovery: 2,002
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 2,828.672822 M⊕
Orbit: 1,766.41 days
Distance: 17.9323 pc

Planet profile

Orbit and physical properties

Orbital period: 1,766.41 days
Semi-major axis: 2.839 AU
Eccentricity: 0.3683
Radius: 12.5 Earth radii
Mass: 2,828.672822 Earth masses
Mass provenance: Mass
Density: 7.96 g/cm³
Equilibrium temperature: 147.32 K
Insolation: 0.0873 Earth flux

Host system

Star and system properties

Host star: 14 Her
Stars in system: 1
Known planets in system: 2
Spectral type: K0
Stellar temperature: 5,338 K
Stellar radius: 0.93 R☉
Stellar mass: 0.97 M☉
Stellar metallicity: 0.43 dex
Stellar age: 4.6 Gyr
Distance: 17.9323 parsecs
Right ascension: 16h10m24.50s
Declination: +43d48m58.90s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,002
Publication date: 2003-01
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

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