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A resource center for archaeoastronomy (astronomy in ancient times) and ethnoastronomy (astronomy in different cultures).
Learn about traditional and modern techniques for navigating without instruments.
Photographs of the August 11 Solar Eclipse.
An interactive demonstration of solar eclipses, created by Rob Scharein at UBC.
Shows the retrograde motion of Mars between 01/01/99 and 08/29/99.
Homework 3: Angular Size Of The Sun, due 9/15. Answer.
Quiz 3: Eclipses