Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 146
Fig. 62. Illustrating the direct and retrograde motions of the planets. Of two planets, the one that is nearer the sun has the greater an-gular and also the greater linear velocity. This being premised, letAB, in the left-hand diagram, be an arc of the earths orbit, and CDthe corresponding arc of…
Astronomy
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