The celestial object holding the record for the fastest revolution around a solar system's largest star is actually not a planet, but a star.

This star is S2, a small, hot star that orbits the supermassive black hole Sagittarius A* at the center of the Milky Way. S2 completes one orbit around Sagittarius A* in just 16 years, making it the fastest-orbiting star known to us.

This incredibly fast revolution is due to the immense gravitational pull of Sagittarius A*, which is about 4 million times more massive than our Sun.