以下文字与答案无关
提示:有些试题内容 显示不完整,文字错误 或者 答案显示错误等问题,这是由于我们在扫描录入过程中 机器识别错误导致,人工逐条矫正总有遗漏,所以恳请 广大网友理解。
The mean sun moves along the ecliptic, the apparent sun along the celestial equator
B:The apparent sun is not important for navigation as difference in time with the mean sun is maximal 4 seconds
C:The apparent sun is the visible sun, the mean sun is the fictitious sun
D:The apparent sun is the fictitious sun coupled to UTC, the mean sun is related to the local mean time