CHANGE OF NODE AND INCLINATION. 137 distant from B than the line in which the old one cut it, or the inclination is diminished. (191.) Now, if we conceive that at B3, iig. 41, after the planet has passed the point highest above the plane, … a force tends to pull it towards the plane, the planet, instead of going to B4, will go to &4, and instead of crossing the plane D E at M, will cross it at m; and then, if it is not disturbed again, will proceed in an orbit of which B3 ^4 m is a part, and which will cross the plane D E at the…
Perturbation · Planets · Satellites · Lunar theory
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