TOI-2346 is a Sun-like F-type star (about 1.27 solar masses, 6,480 K, 1.38 solar radii), 437 light-years from Earth. TOI-2346 b is a 1.24-Jupiter-mass companion, with an orbital period of 3.3 days, at 0.047 AU from its star, and an equilibrium temperature near 1,689 K, on an eccentric orbit (e ≈ 0.09), discovered in 2025 via transit. The inner world is a hot Jupiter — a gas giant hugging its star at a fraction of Mercury's distance — a class that forced astronomers to rethink how giant planets form and migrate inward.

TOI-2346 - System

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