Tau Ceti f
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Tau Ceti f is a potential super-Earth or mini-Neptune orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in radial velocity, based on data obtained using HIRES, AAPS, and HARPS. Wikipedia
Discovered: December 19, 2012
Orbits: Tau Ceti
Mean radius: ~1.81 R🜨 (estimate)
Detection method: Doppler spectroscopy
Mass: ≥3.93 M🜨
Orbital period (sidereal): 1.7 y
Semi-major axis: 1.334 au