Drawing from text by Aristarchus of Samos,
"On the Distances and Sizes of the Sun and Moon"
Excerpt from Ptolemy's Almagest
Detail from ad-Din at-Tusi (1201-1274), Tadhkira, an Arabic
astronomer
Plato (428-347 BC)
Aristotle (384-322 BC)
Eratosthenes (276-195 BC)
Aristarchus (about 200 BC)
Hipparchos (about 200 BC)
Ptolemy (140 AD)
Drawing from text by Aristarchus of Samos,
"On the Distances and Sizes of the Sun and Moon"
Excerpt from Ptolemy's Almagest
Detail from ad-Din at-Tusi (1201-1274), Tadhkira, an Arabic
astronomer