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HAT-P-9 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HAT-P-9 b

Confirmed exoplanet · Gas Giant

HAT-P-9 b

Orbiting HAT-P-9

Discovered in 2008 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-9 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,008
Method: Transit
Radius: 15.614137 R⊕
Mass: 238.05467 M⊕
Orbit: 3.922811 days
Distance: 455.203 pc

Planet profile

Orbit and physical properties

Orbital period: 3.922811 days
Semi-major axis: 0.05287 AU
Eccentricity: 0.084
Radius: 15.614137 Earth radii
Mass: 238.05467 Earth masses
Mass provenance: Mass
Density: 0.342 g/cm³
Equilibrium temperature: 1,540 K
Insolation: 931 Earth flux

Host system

Star and system properties

Host star: HAT-P-9
Stars in system: 1
Known planets in system: 1
Spectral type: F7
Stellar temperature: 6,350 K
Stellar radius: 1.338 R☉
Stellar mass: 1.281 M☉
Stellar metallicity: 0.12 dex
Stellar age: 1.6 Gyr
Distance: 455.203 parsecs
Right ascension: 07h20m40.44s
Declination: +37d08m26.14s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,008
Publication date: 2009-01
Discovery locale: Ground
Facility: HATNet
Telescope: Canon 200mm f/1.8L
Instrument: 2K CCD Sensor
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HAT-P-9 b.

Generic gas giant catalog artwork; not a direct image of HAT-P-9 b — Apex Andromeda catalog artwork

Community discussion

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