2018年IAO理论高年组第3题-科伦坡的日落
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原文题目
Sunset at Colombo. The sunset picture was taken on September 30, 2018, from the seafront in the center of Colombo. The height of the camera above sea level was approximately 6.5m, Calculat4e with the highest possible reasonable acceracy:
3.1. at what tome (use Sri Lanka time) the picture was taken.
3.2. after what time after moment of this picture will civil twilight end?
3.3. Draw the position of the Sun seen at this moment from Adams Pk. (see the map) locates to the East of Colombo (if clouds do not bostruct the observation).
