中文翻譯:
你知道太陽每天都是從同一個地方落下嗎？其實不是哦！太陽的落下方向會根據一年中的時間而改變。雖然太陽總是大約位於西方落下，但在像今天這樣的春分日，太陽會正正向西落下。在明天的九月秋分之後，太陽將會越來越向西南方落下，直到十二月的冬至時達到最大偏移。而在今天的春分之前，太陽則是從西北方落下，直到六月份的夏至到達最高點。這幅美妙的時間流逝圖片展示了2019年12月至2020年6月每個月一天的太陽落下情景。這些圖片是從加拿大的艾德蒙頓拍攝的，這裡位於地球的北半球。中間的那條帶子顯示了太陽在三月份的最後一次春分時落下的樣子。從這個地方，太陽明天將再次沿著這條春分的路徑落下。
原文:
Does the Sun set in the same direction every day? No, the direction of sunset depends on the time of the year. Although the Sun always sets approximately toward the west, on an equinox like today the Sun sets directly toward the west. After tomorrow’s September equinox, the Sun will set increasingly toward the southwest, reaching its maximum displacement at the December solstice. Before today’s September equinox, the Sun had set toward the northwest, reaching its maximum displacement at the June solstice. The featured time-lapse image shows seven bands of the Sun setting one day each month from 2019 December through 2020 June. These image sequences were taken from Alberta, Canada — well north of the Earth’s equator — and feature the city of Edmonton in the foreground. The middle band shows the Sun setting during the last equinox — in March. From this location, the Sun will set along this same equinox band again tomorrow.
來源:NASA每日圖片
