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HD 145457 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 145457 b

Confirmed exoplanet · Gas Giant

HD 145457 b

Orbiting HD 145457

Discovered in 2010 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 145457 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,010
Method: Radial Velocity
Radius: 13.2 R⊕
Mass: 888.012569 M⊕
Orbit: 176.13 days
Distance: 135.292 pc

Planet profile

Orbit and physical properties

Orbital period: 176.13 days
Semi-major axis: 0.762 AU
Eccentricity: 0.111
Radius: 13.2 Earth radii
Mass: 888.012569 Earth masses
Mass provenance: Msini
Density: 2.12 g/cm³
Equilibrium temperature: 826.81 K
Insolation: 77.8446 Earth flux

Host system

Star and system properties

Host star: HD 145457
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 4,757 K
Stellar radius: 9.9 R☉
Stellar mass: 1.9 M☉
Stellar metallicity: -0.14 dex
Stellar age: 2.605 Gyr
Distance: 135.292 parsecs
Right ascension: 16h10m03.89s
Declination: +26d44m34.46s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,010
Publication date: 2010-08
Discovery locale: Ground
Facility: Subaru Telescope
Telescope: 8.2 m Subaru Telescope
Instrument: HDS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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