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HD 220074 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 220074 b

Confirmed exoplanet · Gas Giant

HD 220074 b

Orbiting HD 220074

Discovered in 2012 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 220074 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,012
Method: Radial Velocity
Radius: 12.2 R⊕
Mass: 5,288.6912 M⊕
Orbit: 672.09998 days
Distance: 324.54 pc

Planet profile

Orbit and physical properties

Orbital period: 672.09998 days
Semi-major axis: 1.6 AU
Eccentricity: 0.14
Radius: 12.2 Earth radii
Mass: 5,288.6912 Earth masses
Mass provenance: Msini
Density: 16 g/cm³
Equilibrium temperature: 1,069.88 K
Insolation: 305.7049 Earth flux

Host system

Star and system properties

Host star: HD 220074
Stars in system: 1
Known planets in system: 1
Spectral type: M2 III
Stellar temperature: 3,787 K
Stellar radius: 54.92 R☉
Stellar mass: 2.2 M☉
Stellar metallicity: -0.25 dex
Stellar age: 4.5 Gyr
Distance: 324.54 parsecs
Right ascension: 23h20m14.40s
Declination: +61d58m12.38s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,012
Publication date: 2013-01
Discovery locale: Ground
Facility: Bohyunsan Optical Astronomical Observatory
Telescope: 1.8 m Telescope
Instrument: BOES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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