Astronomy II Earth Motions I. Earth Movement Through Space A. Rotation 1. around axis (imaginary line) a.
causes seasons for Earth 4. Foucault pendulum 5. Coriolis Effect 6. causes day and night 24 hours B. Time 1. Solar noon a.
longitudinal meridian 1) starts at Prime Meridian 2) move westward, move clocks back 1 hour for each zone 3) political boundaries bend zones for convenience a) Eastern 75W b)Central 90W c) Mountain 105 W d)Pacific 120W 4) International Dateline a)change calander 1 day b) move westward advance their calanders c) move eastward back one day d) always 2 dates on Ea at any one time 1) cont.US behind Easia and Pacific Isles.
perihelion summer Jan 2 5. about 1 degree / day [360 degrees/ 365 days] II Seasons ALL...
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