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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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HD 208897 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 208897 b

Confirmed exoplanet · Gas Giant

HD 208897 b

Orbiting HD 208897

Discovered in 2017 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 208897 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,017
Method: Radial Velocity
Radius: 13.7 R⊕
Mass: 379.487118 M⊕
Orbit: 358.27 days
Distance: 67.4872 pc

Planet profile

Orbit and physical properties

Orbital period: 358.27 days
Semi-major axis: 1.063 AU
Eccentricity: 0.02
Radius: 13.7 Earth radii
Mass: 379.487118 Earth masses
Mass provenance: Msini
Density: 0.811 g/cm³
Equilibrium temperature: 507.24 K
Insolation: 10.8876 Earth flux

Host system

Star and system properties

Host star: HD 208897
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 4,860 K
Stellar radius: 4.98 R☉
Stellar mass: 1.25 M☉
Stellar metallicity: 0.21 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 67.4872 parsecs
Right ascension: 21h58m59.78s
Declination: +19d01m12.57s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,017
Publication date: 2017-11
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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