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HD 164604 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 164604 c

Confirmed exoplanet · Gas Giant

HD 164604 c

Orbiting HD 164604

Discovered in 2026 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 164604 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Radial Velocity
Radius: 12.5 R⊕
Mass: 3,019.369867 M⊕
Orbit: 5,387 days
Distance: 39.3633 pc

Planet profile

Orbit and physical properties

Orbital period: 5,387 days
Semi-major axis: 5.556 AU
Eccentricity: 0.196
Radius: 12.5 Earth radii
Mass: 3,019.369867 Earth masses
Mass provenance: Mass
Density: 8.49 g/cm³
Equilibrium temperature: 84.25 K
Insolation: 0.0084 Earth flux

Host system

Star and system properties

Host star: HD 164604
Stars in system: 1
Known planets in system: 2
Spectral type: K3.5 V
Stellar temperature: 4,663 K
Stellar radius: 0.78 R☉
Stellar mass: 0.77 M☉
Stellar metallicity: 0.12 dex
Stellar age: 1.6 Gyr
Distance: 39.3633 parsecs
Right ascension: 18h03m06.89s
Declination: -28d33m39.00s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,026
Publication date: 2026-02
Discovery locale: Ground
Facility: Las Campanas Observatory
Telescope: 6.5 m Magellan II Clay Telescope
Instrument: Carnegie Planet Finder Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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