Aristarchus of Samos, the ancient Copernicus; a history of Greek astronomy to Aristarchus, together with Aristarchus's Treatise on the sizes and distances of the sun and moon (1913)
Heath, Thomas Little, Sir, 1861-1940, Aristarchus, of Samos. On the sizes and distances of the sun and moon. English & Greek. 1913 · Oxford : Clarendon press · leaf 216
iameter. This spherical lemniscate,as Schiaparelli calls it, is shown as well as I can show it in theannexed figure (Fig. 7). Its double point is on the circumference ofthe plane section of the sphere which is at right angles to AB, andit is symmetrical about that plane as well as about the… … Fig. 7. found at the same moment. The curve is actually the intersectionof the sphere with a certain cylinder touching it internally at thedouble point, namely a cylinder with diameter equal to AS,the sagitta (see Fig. 6) of the diameter of the small circle ofthe sphere on which the pole Ρ…
Aristarchus, of Samos · Astronomy, Greek · Astronomers
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