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On the Sizes and Distances — latest news, discussion & facts — IJR

On the Sizes and Distances

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On the Sizes and Distances

work by Aristarchus of Samos, Greek astronomer

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About On the Sizes and Distances

On the Sizes and Distances (of the Sun and Moon) (Ancient Greek: Περὶ μεγεθῶν καὶ ἀποστημάτων [ἡλίου καὶ σελήνης], romanized: Perì megethôn kaì apostēmátōn [hēlíou kaì selḗnēs]) is widely accepted as the only extant work written by Aristarchus of Samos, an ancient Greek astronomer who lived circa 310–230 BCE. This work calculates the sizes of the Sun and Moon, as well as their distances from the Earth in terms of Earth's radius.

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Facts from Wikidata (CC0). Image by Aristarchus of Samos, Pappus of Alexandria, Federico Commandino via Wikimedia Commons (Public domain).