Astronomy, a handy manual for students and others (1918)
Dyson, Frank Watson, Sir, 1868-1939 · New York, E.P. Dutton & Co. · leaf 25
refully observ-ing the position of the Sun just before it sets relativelyto Venus or the Moon, and afterwards when the nightwas dark enough for the stars to be seen, observingthe position of Venus or the Moon relatively to thestars, early astronomers were able to mark the position H ASTRONOMY of… … the simple apparatus possessed by the Chaldeans,Egyptians and Greeks it was far from being an easytask.In the accompanying map, which represents two ANCIENT ASTRONOMY 15 halves of a celestial globe on which all the brighteststars are marked, the position of the Sun is markedfor the first day of…
Astronomy
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