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Gliese 12 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Gliese 12 b

Confirmed exoplanet · Terrestrial

Gliese 12 b

Orbiting Gliese 12

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

NASA Archive record ↗Back to catalog →

Generic terrestrial catalog artwork; not a direct image of Gliese 12 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,024
Method: Transit
Radius: 0.93 R⊕
Mass: 0.95 M⊕
Orbit: 12.761418 days
Distance: 12.21 pc

Planet profile

Orbit and physical properties

Orbital period: 12.761418 days
Semi-major axis: 0.067 AU
Eccentricity: 0.24
Radius: 0.93 Earth radii
Mass: 0.95 Earth masses
Mass provenance: Mass
Density: 6.4 g/cm³
Equilibrium temperature: 314.6 K
Insolation: 1.62 Earth flux

Host system

Star and system properties

Host star: Gliese 12
Stars in system: 1
Known planets in system: 1
Spectral type: M4 V
Stellar temperature: 3,328 K
Stellar radius: 0.265 R☉
Stellar mass: 0.255 M☉
Stellar metallicity: -0.24 dex
Stellar age: 7 Gyr
Distance: 12.21 parsecs
Right ascension: 00h15m49.90s
Declination: +13d33m27.42s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,024
Publication date: 2024-06
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

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