celestial navigation

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Abstract vector hi speed internet technology background

History of Technology Timeline

An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.

11 Egyptian Gods and Goddesses

United States Electoral College votes by state

How Many Electoral College Votes Does Each U.S. State Have?

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

World Data Locator Map: Australia

Is Australia an Island?

Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

Ten Days That Vanished: The Switch to the Gregorian Calendar

celestial navigation: References & Edit History

More Articles On This Topic

Assorted References

altazimuth and equatorial systems
- In astronomical map: The horizon system
astrolabes
- In astrolabe
navigation development
- In navigation: Almanacs and tables
sextants
- In sextant

Article History

Type	Description	Contributor	Date
	Invalidated site: Calculating Lunar Distances.	Gloria Lotha	Dec 15, 2014
	Added new Web site: The Columbus Navigation Homepage.	John Higgins	May 24, 2006
	Article added to new online database.	The Editors of Encyclopaedia Britannica	Jul 20, 1998