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HAT-P-2 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HAT-P-2 b

Confirmed exoplanet · Gas Giant

HAT-P-2 b

Orbiting HAT-P-2

Discovered in 2007 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-2 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Transit
Radius: 10.659759 R⊕
Mass: 2,866.812231 M⊕
Orbit: 5.633516 days
Distance: 127.774 pc

Planet profile

Orbit and physical properties

Orbital period: 5.633516 days
Semi-major axis: 0.06814 AU
Eccentricity: 0.5172
Radius: 10.659759 Earth radii
Mass: 2,866.812231 Earth masses
Mass provenance: Mass
Density: 7.29 g/cm³
Equilibrium temperature: 1,540 K
Insolation: 588.518 Earth flux

Host system

Star and system properties

Host star: HAT-P-2
Stars in system: 1
Known planets in system: 2
Spectral type: F8
Stellar temperature: 6,380 K
Stellar radius: 1.39 R☉
Stellar mass: 1.33 M☉
Stellar metallicity: 0.18 dex
Stellar age: 1.44 Gyr
Distance: 127.774 parsecs
Right ascension: 16h20m36.34s
Declination: +41d02m52.66s

Discovery

Detection and provenance

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