What planet takes 29 Earth years?

Excuse me, could you clarify which planet you're referring to that takes 29 Earth years to complete one orbit around the Sun? As I'm aware, most planets in our solar system have vastly different orbital periods from Earth, but none that precisely match 29 years. Perhaps you're thinking of a hypothetical planet or a specific celestial body in a different solar system? Could you provide any additional context or information to help me better understand your question?