Mercury's rotation and revolution are an example of a 3:2 resonance.

Name: Mercury's rotation and revolution are an example of a 3:2 resonance.
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Mercury rotates three times on its axis for every two revolutions around the sun, creating a 3:2 resonance. Mercury's rotation (its day) takes 58.6 Earth days, while its revolution (its year) takes 88 Earth days. This ratio of 3:2 means that for every 3 rotations, Mercury completes 2 revolutions around the Sun. This is known as a 3:2 resonance.

Mercury's Rotation and Revolution Are an Example of a 3:2