标签： 蓝色时段

天文·每日一图

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蓝色时段的满月

2021年8月26日 A Blue Hour Full Moon Image Credit & Copyright: Giorgia Hofer Explanation: Nature photographers and other fans of planet Earth always look forward to the blue hour. That’s the transition in twilight, just before sunrise or after sunset, when the Sun is below the horizon but land and sky are still suffused with a beautiful blue light. Af...

天文·每日一图

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时光流转

2020 April 9 A Flow of Time Image Credit & Copyright: Paul Schmit Explanation: This surreal timelapse, landscape, panorama spans predawn, blue hour, and sunrise skies. Close to the start of planet Earth’s northern hemisphere spring, the flow of time was captured between 4:30 and 7:00 am from a location overlooking northern New Mexico’s Rio G...