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HD 154391 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 154391 b

Confirmed exoplanet · Gas Giant

HD 154391 b

Orbiting HD 154391

Discovered in 2023 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 154391 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,023
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 2,892.238504 M⊕
Orbit: 5,163 days
Distance: 100.947 pc

Planet profile

Orbit and physical properties

Orbital period: 5,163 days
Semi-major axis: 7.46 AU
Eccentricity: 0.2
Radius: 12.5 Earth radii
Mass: 2,892.238504 Earth masses
Mass provenance: Mass
Density: 8.14 g/cm³
Equilibrium temperature: 253.57 K
Insolation: 0.685 Earth flux

Host system

Star and system properties

Host star: HD 154391
Stars in system: 1
Known planets in system: 1
Spectral type: K1 III
Stellar temperature: 4,909 K
Stellar radius: 8.56 R☉
Stellar mass: 2.07 M☉
Stellar metallicity: 0.1 dex
Stellar age: 1.1 Gyr
Distance: 100.947 parsecs
Right ascension: 17h01m16.83s
Declination: +60d38m56.12s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,023
Publication date: 2024-02
Discovery locale: Multiple Locales
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 154391 b.

Generic gas giant catalog artwork; not a direct image of HD 154391 b — Apex Andromeda catalog artwork