Tau Ceti e is an unconfirmed exoplanet orbiting a solar-type star Tau Ceti, 12 light years away in the constellation Cetus. It is one of the nearest habitable exoplanets. It has a mass of 4.3 Earths, making its radius 1.6 Earths. Its temperature is 282 K. It has an ESI of 0.78, high enough to be Earth-like.