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HD 154857 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 154857 c

Confirmed exoplanet · Gas Giant

HD 154857 c

Orbiting HD 154857

Discovered in 2014 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 154857 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Radial Velocity
Radius: 13.2 R⊕
Mass: 819.97 M⊕
Orbit: 3,452 days
Distance: 63.4482 pc

Planet profile

Orbit and physical properties

Orbital period: 3,452 days
Semi-major axis: 5.36 AU
Eccentricity: 0.06
Radius: 13.2 Earth radii
Mass: 819.97 Earth masses
Mass provenance: Msini
Density: 1.96 g/cm³
Equilibrium temperature: 154.88 K
Insolation: 0.1601 Earth flux

Host system

Star and system properties

Host star: HD 154857
Stars in system: 1
Known planets in system: 2
Spectral type: G5 V
Stellar temperature: 5,605 K
Stellar radius: 1.76 R☉
Stellar mass: 1.718 M☉
Stellar metallicity: -0.2 dex
Stellar age: 5.64 Gyr
Distance: 63.4482 parsecs
Right ascension: 17h11m15.89s
Declination: -56d40m51.74s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,014
Publication date: 2014-03
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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