Cari
Epicycle
01
epikiklus
(astronomy) a secondary circular orbit embedded within a primary circular orbit
02
epikiklus
a small circle whose center moves around the circumference of a larger circle
Contoh
In his astronomical work the Almagest, Ptolemy used a system of deferents and epicycles to explain the observed motions of planets across the night sky.
Copernicus disagreed with the Ptolemaic model adding unnecessary epicycles, believing instead that planets revolve in simpler circular orbits around the Sun.
