...Hedid not undertake continuous observations, but devoted himself to simplifyingthe planetary systems and devising means for more accurately predicting thepositions of the sun, moon, and planets...
George Forbes 「History of Astronomy」
...If the work had been intended only to afford the means of predicting theking's future, the labour would have been regarded by the monarch aswell bestowed...
Richard A. Proctor 「Myths and Marvels of Astronomy」
...It is probable that they had arbitrary rulesfor predicting eclipses...
George Forbes 「History of Astronomy」
...The only object ever aimed at in thosedays was to prepare tables for predicting the places of the planets...
George Forbes 「History of Astronomy」
...—Before the beginning of theChristian era astronomers had found out a rough-and-readymethod of predicting eclipses, which is still of interest andvalue...
George C. Comstock 「A Text-Book of Astronomy」
...
Elements, the quantities which determine the motion of aplanet: data for predicting astronomical phenomena; table of solar,...
Henry Warren 「Recreations in Astronomy」
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biographers Southbridge warders
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