Berry, Arthur,b. 1862 · London, J. Murray · leaf 156
ng always in the direction of the sun, theratio of the sizes of the epicycle and deferent being fixed,but the actual dimensions being practically arbitrary.Ptolemy preferred on the whole to regard the epicycles ofboth these planets as lying between the earth and the sun.The idea of making the sun a… … Fig. 43.—The orbits of Venus and of the earth. in question revolved round the sun at the proper distanceand at the proper rate, the same appearances would beproduced as by Ptolemys epicycle and deferent, the pathof the planet round the sun replacing the epicycle, and theapparent path of the sun…
Astronomy
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