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HD 117618 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 117618 b

Confirmed exoplanet · Gas Giant

HD 117618 b

Orbiting HD 117618

Discovered in 2004 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 117618 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,004
Method: Radial Velocity
Radius: 8.59 R⊕
Mass: 55.30242 M⊕
Orbit: 25.8 days
Distance: 37.7781 pc

Planet profile

Orbit and physical properties

Orbital period: 25.8 days
Semi-major axis: 0.18 AU
Eccentricity: 0.15
Radius: 8.59 Earth radii
Mass: 55.30242 Earth masses
Mass provenance: Msini
Density: 0.479 g/cm³
Equilibrium temperature: 745.79 K
Insolation: 50.4075 Earth flux

Host system

Star and system properties

Host star: HD 117618
Stars in system: 1
Known planets in system: 1
Spectral type: G2 V
Stellar temperature: 5,990 K
Stellar radius: 1.2 R☉
Stellar mass: 1.077 M☉
Stellar metallicity: 0.0283 dex
Stellar age: 5.6 Gyr
Distance: 37.7781 parsecs
Right ascension: 13h32m25.59s
Declination: -47d16m18.86s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,004
Publication date: 2005-04
Discovery locale: Ground
Facility: Anglo-Australian Telescope
Telescope: 3.9 m Anglo-Australian Telescope
Instrument: UCLES Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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