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GJ 720 A b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 720 A b

Confirmed exoplanet · Neptune Like

GJ 720 A b

Orbiting GJ 720 A

Discovered in 2021 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 720 A b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,021
Method: Radial Velocity
Radius: 3.77 R⊕
Mass: 13.64 M⊕
Orbit: 19.466 days
Distance: 15.5575 pc

Planet profile

Orbit and physical properties

Orbital period: 19.466 days
Semi-major axis: 0.119 AU
Eccentricity: 0.12
Radius: 3.77 Earth radii
Mass: 13.64 Earth masses
Mass provenance: Msini
Density: 1.4 g/cm³
Equilibrium temperature: 401 K
Insolation: 4.2846 Earth flux

Host system

Star and system properties

Host star: GJ 720 A
Stars in system: 2
Known planets in system: 1
Spectral type: M0.5 V
Stellar temperature: 3,837 K
Stellar radius: 0.56 R☉
Stellar mass: 0.57 M☉
Stellar metallicity: -0.14 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 15.5575 parsecs
Right ascension: 18h35m19.06s
Declination: +45d44m44.17s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,021
Publication date: 2021-05
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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