# Theory of Rotation for the Planet Mercury

@article{Liu1965TheoryOR, title={Theory of Rotation for the Planet Mercury}, author={H. Liu and J. O'keefe}, journal={Science}, year={1965}, volume={150}, pages={1717 - 1717} }

The theory of the rotation of the planet Mercury is developed in terms of the motion of a rigid system in an inverse-square field. It is possible for Mercury to rotate with a period exactly two-thirds of the period of revolution; there is a libration with a period of 25 years.

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Rotation of Mercury: Theoretical Analysis of the Dynamics of a Rigid Ellipsoidal Planet

- Physics, Medicine
- 1966

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Lancaster for assistance. The numerical analysis was performed by