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HD 155358 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 155358 b

Confirmed exoplanet · Gas Giant

HD 155358 b

Orbiting HD 155358

Discovered in 2007 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 155358 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Radial Velocity
Radius: 13.8 R⊕
Mass: 314.6517 M⊕
Orbit: 194.3 days
Distance: 43.6197 pc

Planet profile

Orbit and physical properties

Orbital period: 194.3 days
Semi-major axis: 0.63 AU
Eccentricity: 0.17
Radius: 13.8 Earth radii
Mass: 314.6517 Earth masses
Mass provenance: Msini
Density: 0.658 g/cm³
Equilibrium temperature: 421.43 K
Insolation: 5.0212 Earth flux

Host system

Star and system properties

Host star: HD 155358
Stars in system: 1
Known planets in system: 2
Spectral type: G0
Stellar temperature: 5,905 K
Stellar radius: 1.38 R☉
Stellar mass: 1.15 M☉
Stellar metallicity: -0.6 dex
Stellar age: 10.7 Gyr
Distance: 43.6197 parsecs
Right ascension: 17h09m34.34s
Declination: +33d21m17.74s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,007
Publication date: 2007-08
Discovery locale: Ground
Facility: McDonald Observatory
Telescope: 9.2 m Hobby-Eberly Telescope
Instrument: High Resolution Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 155358 b.

Generic gas giant catalog artwork; not a direct image of HD 155358 b — Apex Andromeda catalog artwork