In Ptolemy's system the planets orbit the Earth and not the Sun. How did the system explain the retrograde motion of planets like Jupiter?
A) the planets were not moving along the ecliptic but all over the celestial sphere
B) the planets moved in very elongated ellipses, and their speed in orbit changed radically over the course of a year
C) the Sun moved among the planets, and pulled them out of their circular orbits
D) the planets moved on a small circle whose center, in turn, circled a point near the Earth
E) you can't fool me, Ptolemy's system did not include ANY explanation of retrograde motion _________________________________________________________________________
2) 3 Astrology and Astronomy
Correct Answer:
Verified
Q27: What problem has precession caused for many
Q28: Which of the following was NOT done
Q29: In Copernicus' day, people were worried about
Q30: Which of the following was NOT done
Q31: Which of the following is NOT a
Q32: In what fundamental way did the work
Q33: The scientist who first devised experimental tests
Q34: The slow tipping of the Earth's axis
Q35: How did Eratosthenes measure the size of
Q36: According to the geocentric view, everything in
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents