History of the planetary systems from Thales to Kepler (1906)
Dreyer, J. L. E. (John Louis Emil), 1852-1926 · Cambridge University Press · leaf 272
CH. plan, except that the place of the body of the sun is taken bythe epicycle-sphere of each planet, to the inner surface of whichthe planet (a solid spherical body) is attached, or (as Abu 1Faraj says1) fixed like a pearl on a ring, touching the surfacein one point. The axis of the excentric… … Spheres of Mercury. Upper Apsis. 2 Lower Apsis. 3 Upper Apsis of deferent sphere.5 Deferent sphere. 4 Lower Apsis of deferent sphere. 6 Epicycle.7 Mercury. 8 Surrounding complement. 9 Surrounded part of Mumattal sphere. 10 Mudir sphere. 11 Centre of the world. 12 Centre of Mudir. 13 Centre of…
Astronomy -- History · Solar system
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
