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Introductory
Material
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Scientific
method
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Observation
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Hypothesis
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Test under all circumstances
(if possible)
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Check for unexpected results
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Group of correct hypothesis
= theory
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If observation disagrees
with hypothesis, modify hypothesis
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Scientific notation, units
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1 AU = 1.4960 x 108
km = 1.4960 x 1011 m
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Astronomical nomenclature
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diurnal motion
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east to west daily motion
of stars, sun
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really we rotate counter
clockwise
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Celestial sphere, equator
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Lined up with Earth's rotation
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Ecliptic
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Lined up with Earth's orbit
around Sun
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Equinoxes (fall, spring),
Solstices (summer, winter)
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