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CHAPTER 6: Energy and Matter

(h). Earth-Sun Geometry: Summer Solstice Animation

Summer Solstice Animation


Figure 6h-7: This animation displays the geometric relationship that occurs between the Earth and the Sun during the summer solstice. The yellow line on the Earth represents the equator. The green lines are the Tropic of Cancer and Capricorn. The Arctic and Antarctic Circles are shown with red lines. In the animation, the North Pole is tilted 23.5° toward the Sun. This condition causes the Sun's rays to be most intense at the Tropic of Cancer (23.5° North). This is illustrated on the animation by the location sideways yellow T. For any location on the Tropic of Cancer, the Sun's position in the sky would be at 90° or directly overhead at solar noon. Also, note that all locations South of the Antarctic Circle (66.5° South) are in total darkness, while locations North of the Arctic Circle (66.5° North) receive 24 hours of daylight.

(To view this animation your browser must have Apple's QuickTime plug-in. The QuickTime plug-in is available for Macintosh and Windows operating system computers and can be downloaded FREE from the World Wide Web site


Study Guide


Additional Readings

Internet Weblinks
Citation: Pidwirny, M. (2006). "Earth-Sun Geometry: Summer Solstice Animation". Fundamentals of Physical Geography, 2nd Edition. Date Viewed.


Created by Dr. Michael Pidwirny & Scott Jones University of British Columbia Okanagan

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05/07/2009 10:09