the rsearth by the expression —. But here r is less than its mean value,and the expression is less than itsmean, and therefore the moon isj$ not crowded so near the earth asit otherwise would be, and, ofcourse, at this point the moonD will run farther from the earth. At the point C, the radial… … LUNAR PERTURBATIONS. 195 rs , is greater than its mean value; and, of course, crowds the Chap. IV. decreases so Fig. 39. When theradial forceincreases theeccentricityof the lunarorbit. moon nearer to the earth than it otherwise would go; and the eccentri- • «pi T-if i city of the lu- thus we…
Astronomy
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