SCIE 331 Midterm: Midterm Review
10 Feb 2019
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Document Summary
The obliquity (tilt) of the earth around the sun and the tilt of the earth relative to its orbital plane. Misconception: the earth is closer to the sun in the summer, and further away during the winter (elliptical orbit of the earth) Earth"s axis of rotations = 23. 5 degrees; direction perpendicular to its orbital plane. Solstices: (2x/year); tilt of earth"s axis reaches maximum angle compared to the sun, and moves back in the other direction. Subsolar point: point at which the sun is perceived to be directly overhead (at its zenith) Sun shines directly on southern hemisphere and indirectly on the. Sun shines equally on southern and northern hemispheres. Sun shines directly on the northern hemisphere and indirectly on the. The position of the moon relative the earth and the sun. New moon to new moon = 29. 5 days (synodic month) The moon does not make its own light in visible range.
