太陽の遠地点移動の発見
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概要
- 論文の詳細を見る
One of the essential changes in Ptolemaic astronomical theories made by Arab-Islamic astronomers was the discovery that the apogee of the Sun is not fixed but moves slowly with respect to the fixed stars. Although the discovery is not an epoch-making one, it is evidence which shows that the Arab-Islamic world is now going out of the boundaries of Greek science. The discovery is described by al-Biruni in his great astronomical compendium al-Qanun al-Masudi. In this article the observations of Arabic astronomers concerning solar motion and the methods of finding solar apogee are examined on the basis of the information given by al-Biruni.
- 東海大学の論文
- 1998-03-30