The Ptolemaic model of the universe:. Physics & Astronomy

2019-11-14 19:32:04
Physics & Astronomy

explained and predicted the motions of the planets with deferents and epicycles
is the basis of our modern cosmology.
could not account for the stellar parallax observed by Hipparchus
always kept Mars and Mercury between the Earth and Sun.
describes the orbits of the planets as being ellipses, not circles.

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