Without the atmosphere, time between the first glance of sun's center


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送交者: chouqilozi 于 2009-03-24, 13:56:02:

回答: Neither. 由 HunHunSheng 于 2009-03-24, 13:46:01:

and the last glance of sun's center will be the angle the Mars occupies. This time will be less than half a day.



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