TOI-237 is a cool M-dwarf (about 0.18 solar masses, 3,212 K, 0.21 solar radii), 38.1 light-years from Earth. TOI-237 c is a planet with 1.2 Earth radii, with an orbital period of 1.7 days, at 0.016 AU from its star, and an equilibrium temperature near 515 K, discovered in 2026 via transit. TOI-237 b is a planet with 1.4 Earth radii, with an orbital period of 5.4 days, at 0.034 AU from its star, and an equilibrium temperature near 388 K, discovered in 2020 via transit.