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ɪ k /; Koinē Greek: Πτολεμαϊκὴ βασιλεία, Ptolemaïkḕ basileía) [6] or Ptolemaic Empire [7] was an Ancient Greek polity based in Egypt during the Hellenistic period. [8] It was founded in 305 BC by the Macedonian Greek general Ptolemy I Soter , a companion of Alexander the Great , and ruled by the Ptolemaic dynasty until ...
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.
Pages from 1550 Annotazione on Sacrobosco's De sphaera mundi, showing the Ptolemaic system. In the Ptolemaic system, each planet is moved by a system of two spheres: one called its deferent; the other, its epicycle. The deferent is a circle whose center point, called the eccentric and marked in the diagram with an X, is distant from the Earth.
Bahasa Indonesia; Latina; 日本語 ... The Ptolemaic system used in ancient Greek astronomy placed the planets by order of ... Wikipedia® is a registered trademark ...
The lack of Ptolemaic inscriptions or other evidence of Ptolemaic control has led modern scholars to conclude that by the reign of Ptolemy IX Lathyros (r. 116–109 and 88–81 BC), if not already around the middle of the 2nd century BC, most of the Triakontaschoinos, south of Debod, had been lost to the Ptolemies. [10]
Reigning for 275 years, the Ptolemaic was the longest and last dynasty of ancient Egypt from 305 BC until its incorporation into the Roman Republic in 30 BC. [ 6 ] [ 7 ] Ptolemy , a general and one of the somatophylakes (bodyguard companions) of Alexander the Great , was appointed satrap of Egypt after Alexander's death in 323 BC.
Bahasa Indonesia; Italiano; ... The Ptolemaic dynasty (305 BCE−30 BCE) — rulers of the Ptolemaic Kingdom of Hellenistic Greece based in ancient Egypt.
Ptolemaic is the adjective formed from the name Ptolemy, and may refer to: Pertaining to the Ptolemaic dynasty ... Ptolemaic system, ...