Kepler-487 is a Sun-like G-type star (about 0.87 solar masses, 5,422 K, 0.89 solar radii), 872 light-years from Earth. Kepler-487 d is a planet with 2.8 Earth radii, with an orbital period of 2.4 days, discovered in 2021 via transit. Kepler-487 b is a planet with 11.4 Earth radii, with an orbital period of 15.4 days, discovered in 2016 via transit. Kepler-487 c is a planet with 2.7 Earth radii, with an orbital period of 38.7 days, discovered in 2016 via transit. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.