About TOI-3984 A b
TOI-3984 A b is a rare exoplanet. It lies about 355.1 light-years from Earth, shines at apparent magnitude 15.69, has spectral type M4+/-0.5 and has an equilibrium temperature near 563 K.
It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.