| 单词 | heliocentric system |
| 释义 | heliocentric systemheliocentric system:see Copernican systemCopernican system,first modern European theory of planetary motion that was heliocentric, i.e., that placed the sun motionless at the center of the solar system with all the planets, including the earth, revolving around it. ..... Click the link for more information. . heliocentric systemA model of the Solar System or of the Universe that has the Sun at its center. Aristarchus of Samos proposed a heliocentric system in the third century bc in which the planets moved at uniform rates around the Sun in circular orbits. The theory was abandoned due to large discrepancies between prediction and observation, and the geocentric Ptolemaic system was subsequently favored until the establishment of the heliocentric Copernican system. |
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