Popular astronomy : a concise elementary treatise on the sun, planets, satellites and comets (1865)
Mitchel, O. M. (Ormsby MacKnight), 1809-1862 · New York : Oakley & Mason · leaf 330
ing final stability in the planetary system by AS PONDERABLE BODIES. 309 presenting the disturbed orbits to the disturbing bodiesunder all possible configurations. We shall not attempt to exhibit in full the reasoningbj which the variations of the remaining elements areshown to be periodic, when… … Let S represent the sun, E the earth, and P anyplanet disturbed by the earth, and let us suppose that un-disturbed in any small portion of time it would reach P,but subjected to the influence of the earths attraction itreaches V in the same time. The question is, in whatway does this change afiect…
Astronomy
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