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GJ 328 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 328 c

Confirmed exoplanet · Neptune Like

GJ 328 c

Orbiting GJ 328

Discovered in 2023 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of GJ 328 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,023
Method: Radial Velocity
Radius: 4.91 R⊕
Mass: 21.4 M⊕
Orbit: 241.8 days
Distance: 20.5266 pc

Planet profile

Orbit and physical properties

Orbital period: 241.8 days
Semi-major axis: 0.657 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 4.91 Earth radii
Mass: 21.4 Earth masses
Mass provenance: Msini
Density: 0.993 g/cm³
Equilibrium temperature: 184.01 K
Insolation: 0.1927 Earth flux

Host system

Star and system properties

Host star: GJ 328
Stars in system: 1
Known planets in system: 2
Spectral type: M0.0
Stellar temperature: 3,897 K
Stellar radius: 0.63 R☉
Stellar mass: 0.65 M☉
Stellar metallicity: -0.06 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 20.5266 parsecs
Right ascension: 08h55m07.67s
Declination: +01d32m31.20s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,023
Publication date: 2023-09
Discovery locale: Ground
Facility: Roque de los Muchachos Observatory
Telescope: 3.58 m Telescopio Nazionale Galileo
Instrument: HARPS-N Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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