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GJ 1289 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 1289 b

Confirmed exoplanet · Super Earth

GJ 1289 b

Orbiting GJ 1289

Discovered in 2024 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of GJ 1289 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,024
Method: Radial Velocity
Radius: 2.38 R⊕
Mass: 6.27 M⊕
Orbit: 111.74 days
Distance: 8.35147 pc

Planet profile

Orbit and physical properties

Orbital period: 111.74 days
Semi-major axis: 0.27 AU
Eccentricity: 0
Radius: 2.38 Earth radii
Mass: 6.27 Earth masses
Mass provenance: Msini
Density: 2.56 g/cm³
Equilibrium temperature: 150 K
Insolation: 0.0754 Earth flux

Host system

Star and system properties

Host star: GJ 1289
Stars in system: 1
Known planets in system: 1
Spectral type: M4.5 Ve
Stellar temperature: 3,296 K
Stellar radius: 0.245012 R☉
Stellar mass: 0.21 M☉
Stellar metallicity: 0.02 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 8.35147 parsecs
Right ascension: 23h43m07.52s
Declination: +36d32m10.79s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,024
Publication date: 2024-08
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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