Which of. the following was not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model? (a) It made signifi. Cllntly better predictions of planetary positions in our sky. (b) It offered a more natura1explaruttion for the apparent retrograde motion of planets in our sky. (c) It allow; ed calculation of the orbital periods a11d distances of the planets.

Question

Physics

Alyson Marshall

17 February, 21:18

Which of. the following was not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model? (a) It made signifi. Cllntly better predictions of planetary positions in our sky. (b) It offered a more natura1explaruttion for the apparent retrograde motion of planets in our sky. (c) It allow; ed calculation of the orbital periods a11d distances of the planets.

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German Mcguire · Answer 1

C)

Explanation:

Calculation of the orbital periods and distances of the planets is not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model since it's not a quantitative model, it doesn't provide any numerical law to calculate these quantities, and it would be Kepler the first to at least relate the orbital periods and distances of the planets.

On the other hand, it did make better predictions of planetary positions in our sky, since planetary orbits depart little from a circle, and it did offer a more natural explanation for the apparent retrograde motion of planets since this naturally comes up as the inner planet passing by the outer one.