The Ptolemaic model of the universe:. Physics & Astronomy

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

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

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