The Polar Sundial

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Types of Sundials


The dial plate of a polar sundial is parallel with the earth's axis. The gnomon (style) is parallel to the dial plate and the hour lines are parallel to the gnomon and to each other. The distance between the hour lines is not dependent on the latitude but only on the height of the style. This dial is seldom seen and is normally used in combination with other dials

The polar dial is a directional dial.

Horizontal dials
Reflected ceiling dials
© Helga Nordhoff