摘要
利用切线坐标讨论了质点在有心力作用下的轨道微分方程 ,并用该方程对行星的运动轨道进行了研究 。
A differential orbit equation of the material point acted on by the central force is discussed with tangential coordinates,the orbit of motion of a planet has been solved with the equation,and the tangential coordinate equation of a dynamical parameter is also given.