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HD 177830 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 177830 c

Confirmed exoplanet · Gas Giant

HD 177830 c

Orbiting HD 177830

Discovered in 2010 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 177830 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,010
Method: Radial Velocity
Radius: 7.87 R⊕
Mass: 47.6725 M⊕
Orbit: 110.9 days
Distance: 62.7674 pc

Planet profile

Orbit and physical properties

Orbital period: 110.9 days
Semi-major axis: 0.5137 AU
Eccentricity: 0.3
Radius: 7.87 Earth radii
Mass: 47.6725 Earth masses
Mass provenance: Msini
Density: 0.537 g/cm³
Equilibrium temperature: 538.95 K
Insolation: 18.3487 Earth flux

Host system

Star and system properties

Host star: HD 177830
Stars in system: 2
Known planets in system: 2
Spectral type: K0
Stellar temperature: 4,949 K
Stellar radius: 2.62 R☉
Stellar mass: 1.47 M☉
Stellar metallicity: 0.545 dex
Stellar age: 4.4 Gyr
Distance: 62.7674 parsecs
Right ascension: 19h05m20.73s
Declination: +25d55m13.56s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,010
Publication date: 2011-02
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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