Evershed, M. A. (Orr) · London : Gall & Inglis · leaf 150
circle could be read. This last and the eclipticcircle were both divided into 360 degrees, and asmany fractions of a degree as space and skill wouldallow. The equinoctial astrolabe was similar, but the fixedcircle was in the plane of the equator, instead of theecliptic. One of each of these is seen… … ^ -9 s -^ THE SCHOOL OF ALEXANDRIA. 117 Since the ecliptic is the path of the sun as seen inthe sky, it is obvious that it could be determined froma number of different observations of his position atdifferent times of the year. Finally, accurate solar tables were drawn up, showingthe suns position…
Dante Alighieri, 1265-1321 · Astronomy
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