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HD 103197 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 103197 b

Confirmed exoplanet · Neptune Like

HD 103197 b

Orbiting HD 103197

Discovered in 2011 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of HD 103197 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 5.83 R⊕
Mass: 28.6047 M⊕
Orbit: 47.84 days
Distance: 57.1463 pc

Planet profile

Orbit and physical properties

Orbital period: 47.84 days
Semi-major axis: 0.25 AU
Eccentricity: 0
Radius: 5.83 Earth radii
Mass: 28.6047 Earth masses
Mass provenance: Msini
Density: 0.793 g/cm³
Equilibrium temperature: 474.97 K
Insolation: 7.52 Earth flux

Host system

Star and system properties

Host star: HD 103197
Stars in system: 1
Known planets in system: 1
Spectral type: K1 V(P)
Stellar temperature: 5,250 K
Stellar radius: 0.88 R☉
Stellar mass: 0.8 M☉
Stellar metallicity: 0.22 dex
Stellar age: 9.1 Gyr
Distance: 57.1463 parsecs
Right ascension: 11h52m52.85s
Declination: -50d17m34.05s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2011-02
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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