Sundials - World's Oldest Clocks

North American Sundial Society

Selected Sundials of North America

This is a selected listing of sundials in the North American Sundial Society Registry. Click on any dial thumbnail picture or city name to display the full dial description with additional information and images.

 

North Dakota

 
Grand Forks North Dakota USA Armillary Sphere Dial 282
A large brass and cast iron armillary dial with full equatorial and equinoctial colure rings, two tropic rings and Arctic and Antarctic circle rings. The sphere is tilted so the central gnomon points to celestial north and is mounted in a four-legged stand. The gnomon includes a nodus that casts a shadow on a plate with engraved date analemma.
 
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