Distant Star Hosts a Nearly Five-Jupiter-Mass Gas Giant in a 180-Day Orbit

Astronomers using NASA's TESS have discovered TIC-65910228 b, a gas giant with about 4.8 Jupiter masses and a radius near 1.08 Jupiter radii, orbiting a metal-rich sun-like star 864 light-years away. The planet completes an ~180.5-day orbit at ~0.7 AU, placing it in the warm-Jupiter regime. Follow-up with NGTS, HARPS, and CORALIE confirmed the transit and radial-velocity signals, while atmospheric studies remain challenging but possible with next-generation telescopes. The system may also host moons or rings, making TIC-65910228 b a compelling target for future exploration.