This year's autumnal equinox will occur at 5:19 am Wednesday, according to the latest published astronomicalalmanac of China.
根据最新出版的《中国天文年历》，今年秋分准确时间是9月23日5时19分。
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According to legend, Columbus, looking at an astronomicalalmanac compiled by a German mathematician, realized that a total eclipse of the moon would occur on Feb. 29, 1504.
据传说，哥伦布查阅了一位德国数学家编撰的天文年历，发现1504年2月29日将会发生一次月全食。
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The almanac included information on medicines and medical treatment, and listed tides, astronomical information, and eclipses calculated by Banneker himself.