|
''On the Sizes and Distances (of the Sun and Moon)'' (Περὶ μεγεθῶν καὶ ἀποστημάτων (καὶ σελήνης ), ''Peri megethon kai apostematon'') is widely accepted as the only extant work written by Aristarchus of Samos, an ancient Greek astronomer who lived circa 280–240 BC. This work calculates the sizes of the Sun and Moon, as well as their distances from the Earth in terms of Earth's radius. The book was presumably preserved by students of Pappus of Alexandria's course in mathematics, although we do not have the details of this. The ''editio princeps'' was published by John Wallis in 1688, using several medieval manuscripts compiled by Sir Henry Savile. The earliest Latin translation was made by Georgio Valla in 1488. There is also a 1572 Latin translation and commentary by Frederico Commandino.〔Arch. Hist. Exact Sci. 61 (2007) 213–54.〕〔Noack B. (1992) Aristarch von Samos: Untersuchungen zur Überlieferungsgeschichte der Schrif ''Περὶ μεγεθῶν καὶ ἀποστημάτων ἡλίου καὶ σελήνης'', Wiesbaden.〕 ==Symbols== The work's method relied on several observations: * The apparent size of the Sun and the Moon in the sky. * The size of the Earth's shadow in relation to the Moon during a lunar eclipse * The angle between the Sun and Moon during a half moon is very close to 90°. The rest of the article details a reconstruction of Aristarchus' method and results.〔(A video on reconstruction of Aristarchus' method )〕 The reconstruction uses the following variables: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「On the Sizes and Distances (Aristarchus)」の詳細全文を読む スポンサード リンク
|