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See also:

• Reference: Time  
• Science: Astronomy  
• Science: Earth Sciences: Geomatics: Geodesy  

This category in other languages:
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• Celestial Navigation Net - Annotated hub site of resources relating to navigating by the stars, including theory, practice, history, instruments, and classroom links.
• German Institute of Navigation (DGON) - About the organization.
• The Institute of Navigation - Meeting programs with abstracts. Award winners and nomination forms. Membership information. Online version of the quarterly newsletter. Index of the organization's annual journal.
• Lunar Rover Demonstration Navigation Group - About the Carnegie Mellon researchers creating a prototype for a new lunar rover that can navigate rugged terrain and the navigation system they're using.
• Navigation and Related Subjects - Covers celestial navigation theory, sextant errors and corrections, rhumb line calculations and coastal navigation and conning.
• The Navigation Foundation - A non-profit corporation dedicated to the preservation of the art of celestial navigation. Mission, membership benefits, contact information.
• Near-Earth Navigation and Geodesy - Describes the activities and research of the Navigation Research Office at the European Space Operations Center.
• Nordic Institute of Navigation - About the organization. Membership information. Meeting programs. Discussion forum.
• Royal Institute of Navigation - About the London based organization. Membership information. Online newsletter and briefings. Mailing list. Search the organizations library or journals. Competitions and events schedule.
• US Coast Guard Navigation Center - News, updates and advisories. Links to local US Coast Guards sites. Downloadable publications.