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written by David Stern
This pair of web pages 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.
Subjects Levels Resource Types
- Fundamentals
= Eclipses
= Magnitude System
- Historical Astronomy
- High School
- Lower Undergraduate
- Instructional Material
= Curriculum support
- Reference Material
Intended Users Formats Ratings
- Learners
- Educators
- text/html
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Free access
© 2004 David P. Stern
Record Creator:
Metadata instance created June 6, 2004 by David Stern
Record Updated:
January 31, 2011 by Lyle Barbato
Last Update
when Cataloged:
September 18, 2004
Other Collections:

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Record Link
AIP Format
D. Stern, (2004), WWW Document, (
D. Stern, The Moon's Distance--1 (2004), <>.
APA Format
Stern, D. (2004, September 18). The Moon's Distance--1. Retrieved April 16, 2024, from
Chicago Format
Stern, David. The Moon's Distance--1. September 18, 2004. (accessed 16 April 2024).
MLA Format
Stern, David. The Moon's Distance--1. 2004. 18 Sep. 2004. 16 Apr. 2024 <>.
BibTeX Export Format
@misc{ Author = "David Stern", Title = {The Moon's Distance--1}, Volume = {2024}, Number = {16 April 2024}, Month = {September 18, 2004}, Year = {2004} }
Refer Export Format

%A David Stern %T The Moon's Distance--1 %D September 18, 2004 %U %O text/html

EndNote Export Format

%0 Electronic Source %A Stern, David %D September 18, 2004 %T The Moon's Distance--1 %V 2024 %N 16 April 2024 %8 September 18, 2004 %9 text/html %U

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

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