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HD 171028 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 171028 b

Confirmed exoplanet · Gas Giant

HD 171028 b

Orbiting HD 171028

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 171028 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Radial Velocity
Radius: 13.2 R⊕
Mass: 832.7146 M⊕
Orbit: 550 days
Distance: 111.659 pc

Planet profile

Orbit and physical properties

Orbital period: 550 days
Semi-major axis: 1.32 AU
Eccentricity: 0.59
Radius: 13.2 Earth radii
Mass: 832.7146 Earth masses
Mass provenance: Msini
Density: 1.99 g/cm³
Equilibrium temperature: 374.07 K
Insolation: 3.1028 Earth flux

Host system

Star and system properties

Host star: HD 171028
Stars in system: 1
Known planets in system: 1
Spectral type: G0
Stellar temperature: 5,671 K
Stellar radius: 2.47 R☉
Stellar mass: 1.53 M☉
Stellar metallicity: -0.48 dex
Stellar age: 8.59 Gyr
Distance: 111.659 parsecs
Right ascension: 18h32m15.45s
Declination: +06d56m44.46s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,007
Publication date: 2007-11
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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