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OlgaM077 [116]
3 years ago
14

How did ptolemy account for retrograde motion in his model of the solar system

Geography
1 answer:
IgorC [24]3 years ago
4 0

<u>Answer:</u>

Ptolemy accounted for 'retrograde motion' in his model of the solar system by introducing smaller circles named 'epicycles'.

<u>Explanation:</u>

  • According to Ptolemy, the Sun and the other planets in the Solar system orbited around the Earth.
  • The Greeks were convinced that Ptolemy's earlier model did not provide for backward or the retrograde motion.
  • Ptolemy thought over it for a while and theorized the possibility of 'epicycles'.
  • According to Ptolemy, the planets that orbited Earth also orbited another smaller point.
  • The smaller orbits followed by the planets while in motion around the Earth in a larger orbit were introduced by Ptolemy as 'epicycles'.
  • Until Kepler proposed his models of the functioning of the Solar system, Ptolemy's models were considered the most relevant.
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