刚体地球章动理论

Nutation Theory of a Rigid Earth

介绍和比较最新的刚体地球章动理论。重点评述可能成为未来IAU牵动系列基础的KS90［18］理论，它考虑的力学因素，采用的历表和常数系统，对现行K77［2］理论的改进。同时也指出了对KS90应作的微小修正。

The recent nutation theories are introduced and compared with each other among them.The future IAU natation series might be based on KS90 theory (Kinoshita & Souchay 1990),which is given the special attention and comments, including its dynamic factors, its adoped ephemerides, system of constants and its improvement on K77 theory (Kinoshita, 1977). It is also pointed out that some minor revisions should be considered in KS90.