K2-155 is an orange K-type dwarf (about 0.65 solar masses, 4,258 K, 0.58 solar radii), 72.8 light-years from Earth. K2-155 b is a planet with 1.8 Earth radii, with an orbital period of 6.3 days, at 0.056 AU from its star, and an equilibrium temperature near 708 K, discovered in 2018 via transit. K2-155 c is a planet with 2.6 Earth radii, with an orbital period of 13.8 days, at 0.095 AU from its star, and an equilibrium temperature near 583 K, discovered in 2018 via transit.