K2-99 is a Sun-like F-type star (about 1.44 solar masses, 6,069 K, 2.55 solar radii), 519 light-years from Earth. K2-99 b is a 0.87-Jupiter-mass companion, with an orbital period of 18.2 days, at 0.153 AU from its star, and an equilibrium temperature near 1,184 K, on an eccentric orbit (e ≈ 0.22), discovered in 2016 via transit. K2-99 c is a 8.40-Jupiter-mass companion, with an orbital period of 1.43 years, at 1.430 AU from its star, and an equilibrium temperature near 390 K, on an eccentric orbit (e ≈ 0.21), discovered in 2022 via radial velocity.