Noon sundial
A midday sundial is a vertical sundial on a wall facing south or towards midday .
If the wall deviates moderately to the east, it is referred to as a morning (sun) clock , if the wall deviates significantly from a morning (sun) clock . In the case of an east (sun) clock or a polar east (sun) clock , the wall is directed precisely to the east.
If the wall deviates moderately towards the west, it is referred to as an afternoon (sun) clock , if it deviates significantly from an evening (sun) clock . In the case of a west (sun) clock or a polar west (sun) clock , the wall is directed exactly to the west.
The use of the term midday sundial is ambiguous. It is also often used for the noon clock , although its mere display of noon ( wise of noon ) is not a function of a clock .
Morning sundial
Noon sundial
Afternoon sundial
Individual evidence
- ↑ In: René RJ Rohr: The sundial history, theory, function. Callwey Verlag, Munich 1982, ISBN 3-7667-0610-1 , p. 64.