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HAT-P-20 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HAT-P-20 b

Confirmed exoplanet · Gas Giant

HAT-P-20 b

Orbiting HAT-P-20

Discovered in 2010 using Transit. 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 HAT-P-20 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,010
Method: Transit
Radius: 9.718 R⊕
Mass: 2,302.899 M⊕
Orbit: 2.875317 days
Distance: 71.0374 pc

Planet profile

Orbit and physical properties

Orbital period: 2.875317 days
Semi-major axis: 0.0361 AU
Eccentricity: 0.015
Radius: 9.718 Earth radii
Mass: 2,302.899 Earth masses
Mass provenance: Mass
Density: 13.78 g/cm³
Equilibrium temperature: 970 K
Insolation: 85.1168 Earth flux

Host system

Star and system properties

Host star: HAT-P-20
Stars in system: 1
Known planets in system: 1
Spectral type: K3
Stellar temperature: 4,595 K
Stellar radius: 0.694 R☉
Stellar mass: 0.756 M☉
Stellar metallicity: 0.35 dex
Stellar age: 6.7 Gyr
Distance: 71.0374 parsecs
Right ascension: 07h27m39.94s
Declination: +24d20m10.03s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,010
Publication date: 2011-12
Discovery locale: Ground
Facility: HATNet
Telescope: Canon 200mm f/1.8L
Instrument: 2K CCD Sensor
NASA Exoplanet Archive: Open composite record ↗

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