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HD 100777 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 100777 b

Confirmed exoplanet · Gas Giant

HD 100777 b

Orbiting HD 100777

Discovered in 2007 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 100777 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Radial Velocity
Radius: 13.7 R⊕
Mass: 390.928941 M⊕
Orbit: 383 days
Distance: 49.5336 pc

Planet profile

Orbit and physical properties

Orbital period: 383 days
Semi-major axis: 1.06 AU
Eccentricity: 0.38
Radius: 13.7 Earth radii
Mass: 390.928941 Earth masses
Mass provenance: Mass
Density: 0.835 g/cm³
Equilibrium temperature: 264.28 K
Insolation: 0.9345 Earth flux

Host system

Star and system properties

Host star: HD 100777
Stars in system: 1
Known planets in system: 1
Spectral type: G8 V
Stellar temperature: 5,533 K
Stellar radius: 1.04 R☉
Stellar mass: 1.08 M☉
Stellar metallicity: -0.27 dex
Stellar age: 5.7 Gyr
Distance: 49.5336 parsecs
Right ascension: 11h35m51.51s
Declination: -04d45m19.95s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,007
Publication date: 2007-08
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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