K2-254 is an orange K-type dwarf (about 0.71 solar masses, 4,629 K, 0.67 solar radii), 228 light-years from Earth. K2-254 b is a planet with 1.6 Earth radii, with an orbital period of 4.1 days, at 0.045 AU from its star, and an equilibrium temperature near 791 K, discovered in 2018 via transit. K2-254 c is a planet with 2.2 Earth radii, with an orbital period of 12.1 days, at 0.092 AU from its star, and an equilibrium temperature near 551 K, discovered in 2018 via transit.