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Articles related to "Ptolemaic Astronomy"
Ptolemaic Geocentric Astronomy Ptolemy's geocentric astronomical system used four geometric devices, the deferent, epicycle, eccentric, and equant, to explain the observed motions of the planets. ptolemy • ptolemaic astronomy • hipparchus • equant • epicycle
Ptolemy Astronomer Geographer Ptolemy was an ancient Greek scholar who originated the Ptolemaic system in astronomy and made important contributions to geography and optics. ptolemy • claudius ptolemaeus • ptolemaic astronomy • ptolemy's geography • latitude longitude
Ptolemy, Astronomy, & Almagest Ptolemy's geocentric astronomical system placed Earth at the center of the universe and he was considered the ultimate authority in astronomy for about 1400 years. ptolemy • claudius ptolemaeus • ptolemaic astronomy • hipparchus • equant |
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