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HD 2638 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 2638 b

Confirmed exoplanet · Gas Giant

HD 2638 b

Orbiting HD 2638

Discovered in 2005 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 2638 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,005
Method: Radial Velocity
Radius: 14.3 R⊕
Mass: 133.4886 M⊕
Orbit: 3.4442 days
Distance: 54.9621 pc

Planet profile

Orbit and physical properties

Orbital period: 3.4442 days
Semi-major axis: 0.04 AU
Eccentricity: 0
Radius: 14.3 Earth radii
Mass: 133.4886 Earth masses
Mass provenance: Msini
Density: 0.251 g/cm³
Equilibrium temperature: 1,212.27 K
Insolation: 292.3345 Earth flux

Host system

Star and system properties

Host star: HD 2638
Stars in system: 3
Known planets in system: 1
Spectral type: K1 V
Stellar temperature: 5,186 K
Stellar radius: 0.94 R☉
Stellar mass: 0.77 M☉
Stellar metallicity: 0.13 dex
Stellar age: 3 Gyr
Distance: 54.9621 parsecs
Right ascension: 00h29m59.76s
Declination: -05d45m53.86s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,005
Publication date: 2005-08
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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