Search results
Results From The WOW.Com Content Network
What links here; Upload file; Special pages; Printable version; Page information
In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under most geocentric models, the Sun , Moon , stars , and planets all orbit Earth.
Original - Figure of the heavenly bodies - Illustration of the Ptolemaic geocentric model of the Universe by Portuguese cosmographer and cartographer Bartolomeu Velho (?-1568). Taken from the his treaty Cosmographia, made in Paris, 1568 (Bibilotèque National, Paris). Notice the distances of the bodies to the centre of the Earth (left) and the ...
Ptolemy's world map, reconstituted from Ptolemy's Geography (circa 150) in the 15th century, indicating "Sinae" at the extreme right, beyond the island of "Taprobane" (Ceylon or Sri Lanka, oversized) and the "Aurea Chersonesus" (Southeast Asian peninsula).
What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL
Nederlands: The Ptolemaic system is an ancient astronomical model that posits the Earth as the center of the universe, with the planets, the Sun, and the stars orbiting around it in a series of concentric circles.
Counting the total number is difficult, but estimates are that he created a system just as complicated, or even more so. [16] Koestler, in his history of man's vision of the universe, equates the number of epicycles used by Copernicus at 48. [17] The popular total of about 80 circles for the Ptolemaic system seems to have appeared in 1898.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate