K2-264 is a cool M-dwarf (about 0.50 solar masses, 3,660 K, 0.47 solar radii), 186 light-years from Earth. K2-264 b is a planet with 2.2 Earth radii, with an orbital period of 5.8 days, at 0.050 AU from its star, and an equilibrium temperature near 496 K, discovered in 2018 via transit. K2-264 c is a planet with 2.7 Earth radii, with an orbital period of 19.7 days, at 0.113 AU from its star, and an equilibrium temperature near 331 K, discovered in 2018 via transit.