celestial coordinate 天球坐标
- Based on satellite ephemeris and time data of the satellite coordinates of the celestial coordinate system.
根据卫星星历和时间数据计算卫星在天球坐标系中的坐标。 - The celestial coordinate system is a coordinate system for mapping position in the sky which based on the rotation and revolution around the Sun of the planets.
行星的自转和绕太阳公转是建立天球坐标系的事实依据。
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