Question

Identify the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth’s Moon.

Answer 1

Actually, the celestial object in our solar system that has the most similar rotation period of the Earth's moon is the Sun itself. It is like this because the moon has become tidally locked to the Earth. The answer is not Mars. 

Answer 2

Mars is the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth’s Moon. It is roughly estimated that its rotation is 24 hours, 39 minutes, and 35.244 seconds, which is almost similar to 27.32 days of the Moon.