The attitude motion equation of satellite was given, and the attitude of magnetic control for gravitygradient satellite would go to stable.
给出了卫星姿态运动方程，并证明采用两种方法控制卫星姿态的稳定性。
2
The application of gravitygradient in the attitudecontrol system of mini-satellites provides an advantaged tool for the development and research of the miniaturization of satellites.