What was the key feature missing in Copernicus\' theorythat required him to incl

Question

What was the key feature missing in Copernicus' theorythat required him to include epicycles?
APlanets move in squareorbits.
BPlanets move inhyperbolic orbits.
CPlanets move in parabolicorbits.
DPlanets move inelliptical orbits.
EPlanets move in circularorbits.
What is an epicycle?
AA farmyardtractor.
BA small circle whichco-rotates with a planet's orbit.
CA device invented byKepler to measure stellar positions.
DAn essential element ofthe Heliocentric theory.
EAnother name for theorbit of a planet around the Sun.

Explanation / Answer

The first answer is "A"

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