南极光与国际太空站
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southern sky
天文·每日一图
南半球下午的日行迹
2023年9月23日 Afternoon Analemma Image Credit & Copyright: Ian Griffin (Otago Museum) Explanation: An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. To make this one, a 4×5 pinhole camera was set up looking north in southe
天文·每日一图
11公里高空的南天
2021年01月30日 Southern Sky from 38,000 Feet Image Credit & Copyright: Ralf Rohner Explanation: Celestial sights of the southern sky shine above a cloudy planet Earth in this gorgeous night sky view. The scene was captured from an airliner’s flight deck at 38,000 feet on a steady westbound r