Kepler-92 is a Sun-like G-type star (about 1.07 solar masses, 5,904 K, 1.82 solar radii), 478 light-years from Earth. Kepler-92 b is a 0.20-Jupiter-mass companion, with an orbital period of 13.7 days, discovered in 2013 via transit. Kepler-92 c is a 6.1-Earth-mass planet, with an orbital period of 26.7 days, discovered in 2013 via transit. Kepler-92 d is a planet with 2.1 Earth radii, with an orbital period of 49.4 days, on an eccentric orbit (e ≈ 0.07), discovered in 2015 via transit. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.