Lecture 1-2 - Basics of our Own Backyard

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Unformatted text preview: law.gif Orbits l༆  Corollary: you speed up as you get closer so season is shorter when you are closer. 7 day’s worth (see ch.3 p. 65). Which ones? l༆  Precession, gravity – it’s always changing Seasons l༆  Earth doesn’t sDck straight up – neither does Venus (97 deg) ! l༆  But it doesn’t remain staDc….variaDon in obliquity due to precession Day/Night – northe...
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