Evershed, M. A. (Orr) · London : Gall & Inglis · leaf 104
Fig. 16. The System of Philolaus : night on earth. Only the side turned away from the centre is inhabited: consequently the CentralFire and Autichthou are invisible. … Fig. 17. Twelve hours later : day on earth. Earth has made half a revolution and her outer side is now lighted by the sun, which has only moved about half a degree forward in its yearly orbit. Antichthon has also made half a revolution, theiefore remains invisible. 74 PYTHAGORAS AND HIS FOLLOWERS.…
Dante Alighieri, 1265-1321 · Astronomy
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