Kepler-20g is a non-transiting
exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
orbiting
Kepler-20. Its radius is about twice that of
Earth, with a
minimum mass [ ]Earth mass
An Earth mass (denoted as M_\mathrm or M_\oplus, where ⊕ is the standard astronomical symbol for Earth), is a unit of mass equal to the mass of the planet Earth. The current best estimate for the mass of Earth is , with a relative uncertainty ...
es. Kepler-20g was announced on 24 August 2016. Existence of the planet was questioned in 2019.
References
Exoplanets discovered in 2016
Exoplanets detected by radial velocity
G
{{Extrasolar-planet-stub
Lyra (constellation)