Kepler-1625 is a Sun-like G-type star (about 0.96 solar masses, 5,677 K, 0.94 solar radii), 2,310 light-years from Earth. Kepler-1625 b hosts the strongest exomoon candidate yet claimed, a possible Neptune-sized moon that remains unconfirmed. Kepler-1625 b is a planet with 6.1 Earth radii, with an orbital period of 287 days, discovered in 2016 via transit. The planet was found when it crossed the face of its star, producing periodic dips in brightness that reveal its size and orbital period to space-based photometry. At roughly 2,310 light-years, Kepler-1625 lies far beyond the nearest stars yet remains reachable to large survey telescopes.