Rough Science
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Explore the Challenges

The Challenge: Measure Latitude and Longitude

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Astronomical Navigation, Sea and Space Project
Educational Links on Navigation
A Walk through Time
Global Positioning System Overview
Visual Navigation - Astronomic Sights
The Constellations and their Stars
Astronomy On-line


Cox J., Pocket Star Atlas, Cambridge University Press, 1996. ISBN 0 5215 8992 4.

Kerrod R., Get a Grip on Astronomy, Time Life, 1999. ISBN 0 7370 0047 3.

Rohr R.R.J., Sundials, History, Theory and Practice, Dover Publications, 1996. ISBN 0 4862 9139 1.

Waugh A., Time, Headline Publishing, 1999. ISBN 0 7472 2178 2.