V Nagoye se podivali mj. do kroniky Theofána Homologéta a mohli tak zpřesnit odhady proměn rotace Země. https://t.co/39FctE88Fd
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RT @PASPJournal: A recent open access article published in @PASPJournal analyzes Earth's variable rotation prior to the 17th century throug…
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A recent open access article published in @PASPJournal analyzes Earth's variable rotation prior to the 17th century through an analysis of 4th through 7th century Byzantine eclipse records. https://t.co/nW3yneFTx0. -JGM https://t.co/Vcf8lA2dA5
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RT @Kyukimasa: 皆既日食のタイミングに関しては日付時間はあいまいだけど、太陽隠れて星が見えたという記述から皆既日食のパスがわかるのだそうだ https://t.co/UylRaG4UBC