UCAC4 328-061594 is a Sun-like G-type star (about 1.19 solar masses, 5,778 K), 39.9 light-years from Earth. UCAC4 328-061594 b is a 21.0-Jupiter-mass companion, at 19,000 AU from its star, discovered in 2024 via direct imaging. Direct imaging revealed these planets because they are young, massive, and widely separated from their star, appearing bright in infrared light against the glare. UCAC4 328-061594 b orbits far from its host star. At 21.0 Jupiter masses, the companion lies near the dividing line between giant planets and brown dwarfs.