阿比斯库的幻日
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ice halo
天文·每日一图
北纬63度的日晕
2022年12月21日 Sun Halo at Sixty-three Degrees North Image Credit & Copyright: Goran Strand Explanation: Happy Solstice! Today is the December solstice, marking an astronomical beginning of summer in the southern hemisphere and winter in the north. On its yearly trek through planet Earth’s s
天文·每日一图
月光下的冰晕
2022年5月14日 Ice Halos by Moonlight Image Credit & Copyright: Alan Dyer, Amazingsky.com, TWAN Explanation: An almost full moon on April 15 brought these luminous apparitions to a northern spring night over Alberta Canada. On that night, bright moonlight refracted and reflected by hexagonal ice cr
天文·每日一图
微笑的彩虹
2022年3月11日 When Rainbows Smile Image Credit & Copyright: Marcella Giulia Pace Explanation: Want to see a rainbow smile? Look near the zenith (straight up) when the sun is low in the sky and you might. This example of an ice halo known as a circumzenithal arc was captured above a palm tree top f