南极极昼日的日食
2021年12月10日 Eclipse on a Polar Day Image Credit & Copyright: Stephanie Ziyi Ye Explanation: During polar day, in Arctic and Antarctic summer, the Sun stays above the horizon for periods of 24 hours or more. Recorded on December 4, this fisheye timelapse image tracks the Sun in multiple frames as it completes a circle in the summer sky above Union Glacie...