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HAT-P-4 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HAT-P-4 b

Confirmed exoplanet · Gas Giant

HAT-P-4 b

Orbiting HAT-P-4

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-4 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Transit
Radius: 14.28 R⊕
Mass: 213.255 M⊕
Orbit: 3.056536 days
Distance: 320.451 pc

Planet profile

Orbit and physical properties

Orbital period: 3.056536 days
Semi-major axis: 0.04438 AU
Eccentricity: 0
Radius: 14.28 Earth radii
Mass: 213.255 Earth masses
Mass provenance: Mass
Density: 0.403 g/cm³
Equilibrium temperature: 1,686 K
Insolation: 1,438 Earth flux

Host system

Star and system properties

Host star: HAT-P-4
Stars in system: 2
Known planets in system: 1
Spectral type: F
Stellar temperature: 5,860 K
Stellar radius: 1.596 R☉
Stellar mass: 1.248 M☉
Stellar metallicity: 0.24 dex
Stellar age: 3.9 Gyr
Distance: 320.451 parsecs
Right ascension: 15h19m57.89s
Declination: +36d13m46.36s

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 ↗

Visual archive

Gallery

One image from HAT-P-4 b.

Generic gas giant catalog artwork; not a direct image of HAT-P-4 b — Apex Andromeda catalog artwork