Ian
priscilla 1Analemma
December 23rd 2009 02:02
Analemma over the Ukraine
An analemma is the figure-8 loop you get when you mark the position of the Sun at the same time each day throughout the year. The tilt of planet Earth's axis and the variation in speed as it moves around its elliptical orbit combine to produce the predictable analemma curve. The top and bottom of the figure-8 correspond to the Solstices -- the Northern and Southern limits of the Sun's sky motion. The two Equinoxes find the Sun at points along the anelemma curve exactly half way between the Solstices. Here, the analemma's Southern portion is partly hidden by mountains.
Analemma over stone ruins of the Tholos at the ancient site of Delphi, Greece.
Analemma over the Temple of Olympian Zeus
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