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> Equatorial Sundial

Equatorial Sundial

author: S.Beaucourt/Novapix

reference: a-cad01-00160

Image Size 300 DPI: 32 * 21 cm

In an equatorial sundial, the planar surface that receives the shadow, is exactly perpendicular to the gnomon's style. This plane is called equatorial, because it is parallel to the equator of the Earth.

Keywords for this photo:

ASTRONOMY - MEASURE - SCIENTIFIC INSTRUMENT - SHADOW - SUN - SUNDIAL - TIME -