The Earliest Drawings of Datable Auroras and a Two-Tail Comet from the Syriac Chronicle of Zūqnīn
The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Zūqnīn Hisashi Hayakawa (1), Yasuyuki Mitsuma (2), Yasunori Fujiwara (3), Akito Davis Kawamura (4), Ryuho Kataoka (3, 5), Yusuke Ebihara (6, 7), Shunsuke Kosaka (8), Kiyomi Iwahashi (9), Harufumi Tamazawa (4), Hiroaki Isobe (7, 10) (1) Graduate School of Letters, Kyoto University, Kyoto, Japan (2) Graduate School of Arts and Sciences, the University of Tokyo, Tokyo, Japan (3) Department of Polar Science, SOKENDAI, Tachikawa, Japan (4) Kwasan Observatory, Kyoto University, Kyoto, Japan (5) National Institute of Polar Research, Tachikawa, Japan (6) Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan (7) Unit of Synergetic Studies for Space, Kyoto University, Kyoto Japan (8) Graduate School of Letters, Tohoku University, Sendai, Japan (9) National Institute for Japanese Literature, Tachikawa, Japan (10) Graduate School of Advanced Integrated Studies for Human Survivability, Kyoto University, Japan 1 Abstract People have probably been watching the sky since the beginning of human history. Observers in pre-telescopic ages recorded anomalous events and these astronomical records in the historical documents provide uniquely valuable information for modern scientists. Records with drawings are particularly useful, as the verbal expressions recorded by pre-telescopic observers, who did not know the physical nature of the phenomena, are often ambiguous. However, drawings for specific datable events in the historical documents are much fewer than the verbal records. Therefore, in this paper, we show the possible earliest drawings of datable auroras and a two-tail comet in a manuscript of the Chronicle of Zūqnīn, a Syriac chronicle up to 775/776 CE to interpret their nature.
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