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Dihelion sundial sculpture measures winter sunshine

Dihelion sundial sculpture in winter sunshine

This dual sundial captures the time of day and the season of the year with two separate gnomons, which cast two separate shadows. In this photo the season gnomon casts its shadow in winter sunshine. The shadow falls at a low angle and crosses a sundial marker for Winter Solstice.

It is always intriguing to see how many different measurements can be made with a sundial, and in how many different ways. The Dihelion sundial measures in two ways, and you wait for a whole year before the measurements repeat themselves, but it is always fascinating. The photo catches a moment of winter sunshine when Dihelion throws a shadow at a shallow angle across a winter solstice marker. Continue reading

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