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GARDEN SUNDIAL: simulation of shadow cast by a garden sundial on Midsummer Day at the latitude of Greenwich (London, England).

GARDEN SUNDIALS tend to have the dial placed horizontally and the gnomon (the object that casts the shadow) at the same angle as the latitude of the garden. This means that the gnomon lies parallel to the axis of rotation of the Earth. For an explanation of this please see our sundial and Earth animation. The shadow sweeps out a path that is close to regularly spaced for the hours although some adjustment is needed for complete accuracy. As well as plinth mounted garden sundials one can have wall mounted sundials.





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Russell Kightley Media
PO Box 9150, Deakin, ACT 2600, Australia. Mobile phone Australia 0405 17 64 71
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