珊蒂与月晕
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标签： 冰晕
巴伐利亚上空的冰晕
2023年12月20日 Ice Halos over Bavaria Image Credit & Copyright: Bastian Werner Explanation: What’s causing those unusual sky arcs? Ice crystals. While crossing a field of fresh snow near Füssen, Bavaria, Germany, earlier this month, the photographer noticed that he had entered an ice fog. For suspended water to freeze into an ice fog requires quite c...
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 skies, at this solstice the Sun reaches its southern most dec...
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 crystals in high clouds created a complex of halos and arcs mo...
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 from Ragusa, Sicily on February 24. The vividly colorful arcs...