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这是因为太阳是恒星，恒星的意思就是它在一段很长的时间里，它在宇宙中的位置是不变的。而地球是行星，它一方面在围绕太阳作公转，另一方面在围绕地轴作自转，而自转的方向...
因为地球绕太阳公转的同时,也在进行着自转,方向是自西向东,所以我们就会看到太阳东升西落。
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