K2-111 is a Sun-like G-type star (about 0.84 solar masses, 5,775 K, 1.25 solar radii), 200 light-years from Earth. K2-111 b is a 5.3-Earth-mass planet, with an orbital period of 5.4 days, at 0.057 AU from its star, and an equilibrium temperature near 1,293 K, on an eccentric orbit (e ≈ 0.13), discovered in 2017 via transit. K2-111 c is a 11.1-Earth-mass planet, with an orbital period of 15.7 days, at 0.116 AU from its star, and an equilibrium temperature near 923 K, on an eccentric orbit (e ≈ 0.07), discovered in 2020 via radial velocity.