采用解析微扰级数求解行星位置，可以得到J2000坐标系中包括日月以及八大行星的位置。 是求解航天器日月摄动力和力矩，太阳光压力矩的基础。与matlab采用发布的星历计算的位置相差很小。(The position of planets in J2000 coordinate system including sun, moon and eight planets can be obtained by solving the position of planets with analytic perturbation series. It is the basis of calculating the solar and lunar perturbation force, moment and pressure moment of sunlight of spacecraft.)