History of the planetary systems from Thales to Kepler (1906)
Dreyer, J. L. E. (John Louis Emil), 1852-1926 · Cambridge University Press · leaf 344
at time.He therefore thought it necessary to assume the followingmotion of the line of apsides, The sun, the centre of theworld, is in S, round it the point A moves in a circle from west 1 Lib. in. cap. I, p. 166. - Lib. in. cap. 16, p. 211. a He knew of it from the Epitome of lte^iomontainiH, lib.… … of the obliquity. If the radius of the earths orbit BT be = 1,SA is = 0-0368 and ^£ = 0-0047. When B was at the point1 on the small circle, the excentricity was a maximum, thistook place about the year B.C. 64; at the point 3 (which B wasto reach about a hundred years after the time of…
Astronomy -- History · Solar system
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