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The Heliocentric Model
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Astronomy
AST.022 The Heliocentric Model
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Which statement best compares a basic Earth-centered model with a Sun-centered model for Mars's retrograde motion?
A
The Sun-centered model says Mars vanishes behind the Moon during every loop.
B
The Sun-centered model explains the loop as a viewpoint effect from Earth's moving orbit.
C
The Earth-centered model explains the loop by making Earth orbit Mars.
D
Both models require Mars to stop rotating on its axis during the loop.
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