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巴伐利亚上空的冰晕

作者： NASA中文 / 2023年12月20日

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. Fo […]

天文·每日一图

狮子CW恒星周围的壳层与光弧

作者： NASA中文 / 2023年7月17日

2023年7月17日 Shells and Arcs around Star CW Leonis Image Credit: ESA, NASA, Hubble, T. Ueta (U. Denver), H. Kim (KASI) Explanation: What’s happening around this star? No one is sure. CW Leonis is the closest carbon star, a star that appears orange because of atmospheric carbon dispersed from int