公元 1221 年 5 月 23 日的日食和 ΔT 值

IF 0.3 3区哲学 Q3 HISTORY & PHILOSOPHY OF SCIENCE

Journal for the History of Astronomy Pub Date : 2023-11-01 DOI:10.1177/00218286231200486

Lihua Ma

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引用次数: 0

摘要

中国古典名著《炼丹家游记：清真可汗苏门道士钱谦益自中国至兴都库什山的旅程》记载了一次日全食。本文根据当地环境的地理特征，研究了日食观测的可能地点。作者利用现代天文行星星历表确认了观测记录，并得出公元 1221 年的 ΔT 值上限为 +768 秒。

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The solar eclipse of A.D. 1221 May 23 and the value of ΔT

A total solar eclipse was recorded in a classic Chinese book with the title The Travels of an Alchemist: the Journey of the Taoist Ch’ang Ch’un from China to the Hindukush at the Sumons of Chingiz Khan. In the present paper, possible locations of the solar eclipse observation are investigated, taking into account the geographical characteristics of local environments. With a modern astronomical planetary ephemeris, the authors confirm the observation records and derive an upper limit of +768 seconds for the ΔT value at the epoch A.D. 1221.

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来源期刊

Journal for the History of Astronomy 地学天文-科学史与科学哲学

CiteScore

0.50

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Science History Publications Ltd is an academic publishing company established in 1971 and based in Cambridge, England. We specialize in journals in history of science and in particular history of astronomy.