HAT-P-26 is an orange K-type dwarf (about 1.12 solar masses, 5,079 K, 0.87 solar radii), 142 light-years from Earth. HAT-P-26 b is a 0.07-Jupiter-mass companion, with an orbital period of 4.2 days, on an eccentric orbit (e ≈ 0.12), discovered in 2010 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. The planet's marked eccentricity suggests past scattering events or perturbations from unseen companions. Its low mass makes HAT-P-26 b a Neptune- or super-Earth-class world rather than a gas giant.