基于OpenGL的卫星覆盖可视化仿真,通过轨道分析了三维和二维显示，星下点-OpenGL-based visual simulation of the satellite coverage through the three-dimensional and two-dimensional orbital analysis shows that the nadir

计算太阳系各天体的实时参数信息。有多种坐标系统输出格式可供选择。- This program computes the orbital positions of planetary bodies and performs rigorous coordinate reductions to apparent geocentric and topocentric place (local altitude and azimuth). It also reduces star catalo

The program computes and plots the equation of time, the declination, and an analemma curve for various orbital parameters. The analemma is the curve traced by the position of the sun, measured at clock noon, over a year.

基于openGL语言编写的模拟不同轨道半径以及不同轨迹类型的行星自转和公转场景的VC++代码。-VC++ code is based on openGL simulate different languages and different type of trajectory orbital radius of the planet' s rotation and revolution scene.