Kepler-401 is a Sun-like F-type star (about 1.17 solar masses, 6,184 K, 1.29 solar radii), 966 light-years from Earth. Kepler-401 b is a planet with 1.7 Earth radii, with an orbital period of 14.4 days, at 0.122 AU from its star, discovered in 2014 via transit. Kepler-401 c is a planet with 2.1 Earth radii, with an orbital period of 47.3 days, at 0.269 AU from its star, discovered in 2014 via transit. Kepler-401 d is a planet with 2.3 Earth radii, with an orbital period of 184 days, discovered in 2016 via transit.