Kepler-172 is a Sun-like G-type star (about 1.08 solar masses, 5,526 K, 1.08 solar radii), 829 light-years from Earth. Kepler-172 b is a planet with 2.4 Earth radii, with an orbital period of 2.9 days, at 0.040 AU from its star, discovered in 2014 via transit. Kepler-172 c is a planet with 2.9 Earth radii, with an orbital period of 6.4 days, at 0.068 AU from its star, discovered in 2014 via transit. Kepler-172 d is a planet with 2.3 Earth radii, with an orbital period of 14.6 days, at 0.118 AU from its star, discovered in 2014 via transit.