astronomers+questions+7+8+and+9


 *  Katie Fear and Victoria Loechel's Page

7. __Eratothenes__ Eratothenes was born in Cyrene (Modern day Libya). He was a mathematician, poet, athlete, geographer, and astronomer. He was best known for finding the circumference of the Earth, creating latitude and longitude, estimating the distance from the Earth to the Sun. When he was 30, Pharaoh Ptolemy III asked him to come to Alexandria, Egypt, to tutor the king's son, Philopator; also to be a librarian at the Library of Alexandria.

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