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Distance to the Moon
This pair of web pages, authored and curated by David P. Stern, describes early calculations of the Earth-Moon distance by Greek astronomers. Using lunar and solar eclipses, the astronomers Aristarchus and Hipparchus determined the distance to the moon using geometry. The methods and mathematics used are described as well as the accuracy and errors. These pages are linked to other information on the geometry of the sun/earth/moon system. This is part of a large web site "From Stargazers to Starships" that presents physics concepts through connections to space science and an historical perspective. Spanish, French, and Italian translations are available.
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