HD 189567 is a Sun-like G-type star (about 0.83 solar masses, 5,726 K), 17.9 light-years from Earth. HD 189567 b is a 8.5-Earth-mass planet, with an orbital period of 14.3 days, at 0.111 AU from its star, on an eccentric orbit (e ≈ 0.19), discovered in 2021 via radial velocity. HD 189567 c is a 7.0-Earth-mass planet, with an orbital period of 33.7 days, at 0.197 AU from its star, on an eccentric orbit (e ≈ 0.16), discovered in 2021 via radial velocity. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.