particular portion of time, and finding thus the place where the body will be at the end of any time that we may please to fix on with- out the smallest error. The rules to which this leads are simple: but the demonstration of the rules re- quires the artifices of advanced science. We cannot here… … in the direction A B, and if the attraction of the sun, situated at S, begins immediately to act on it, and con- tinues to act on it according to the law that we have mentioned (that is, being inversely proportional to the square of its distance from S, and always directed to S); and if no other…
Perturbation · Planets · Satellites · Lunar theory
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