Astronomy, a handy manual for students and others (1918)
Dyson, Frank Watson, Sir, 1868-1939 · New York, E.P. Dutton & Co. · leaf 38
Diag. XIII. ANCIENT ASTRONOMY 27 distance of the Moon subtends an angle of 8o. Dia-gram XIV, in which S, E, M are the Sun, Earth and F … Diag. XIV. Moon, shows how the shadow is formed. The angleAEB is thus found to be 8or, while the angle FEGunder which the Sun is seen is 30-1 [In the diagramthese angles are necessarily grossly exaggerated.] With these data, and making the assumption thatthe Suns distance is 20 or 30 or any large…
Astronomy
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