The following page in Appropedia contains information on how to do calculations concerning the Sun and uses of Solar Energy: http://www.appropedia.org/Sun_related_calculations
- December 2015: Another much simpler approach to determining the annual movement the sun for various locations is a program called Suncalc. Besides annual range, this useful tool also gives realtime sun information for a specific location: http://www.suncalc.org
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