GEOG 1280 Lecture Notes - Lecture 7: Subsolar Point
17 May 2017
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Document Summary
Geography deals with the objects in the world. Earth revolves around the sun in an elliptical orbit. Largest distance: aphelion, 152 million km july 3-7. Earth rotates on its axis once in 23 hours and 56 minutes with respect to the stars. Earths diameter is elliptical, bulges slightly at the equator. The stars appear to rotate around the north star: polaris. When the sun is directly overhead it is called the subsolar point. Tropic of cancer and the tropic of capricorn. In winter, the sun is over the tropic of capricorn. If you take a picture of the sun at the same time every day of the year it is called an. Rotates around a common centre, centre of mass (barycentre) Torque develops on the opposite side of the earth which pushes the water away from the earth. Takes just over 24hrs for a cycle to occur.
