A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 59
NET. 93. The mean placeof a planet is the placeit would have occupiedhad it revolved in a cir-cular orbit, and withuniform velocity. The true place is thatwhich it really occupies,revolving as it does inan elliptical orbit, andwith unequal velocity. 1. In the cut, the dotted ellipserepresents the… … 93. What is meant by the mean place of a planet ? The true place ? (When DIKECT AND RETROGRADE MOTIONS. 55 DIRECT AND RETROGRADE MOTIONS.
Astronomy
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