Sundial

The accuracy of a horizontal plane (plate) sundial is governed primarily by the latitude North or South from the equator.

Make sure the "North" position points to True (North Pole) North rather than magnetic north.

Average CONUS Latitude: 39.83333

• https://www.latlong.net/

• https://sundialsoc.org.uk/all-about-sundials/how-sundials-work/part-4-how-sundials-work/

• https://www.mysundial.ca/tsp/sundials_dialling.html

Slot Tester

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