Kepler-1388 is an orange K-type dwarf (about 0.63 solar masses, 4,098 K, 0.61 solar radii), 454 light-years from Earth. Kepler-1388 c is a planet with 2.3 Earth radii, with an orbital period of 5.5 days, discovered in 2016 via transit. Kepler-1388 b is a planet with 2.6 Earth radii, with an orbital period of 12.3 days, discovered in 2016 via transit. Kepler-1388 d is a planet with 2.9 Earth radii, with an orbital period of 21.0 days, discovered in 2016 via transit. Kepler-1388 e is a planet with 2.5 Earth radii, with an orbital period of 37.6 days, discovered in 2016 via transit.