Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt and Company · leaf 181
e when at hergreatest distance south of theequator, in the other half of herorbit, she attained a correspond-ing south declination, and cul-minated at a lower altitude thanshe had for eighteen years. In1885 the nodes will change places,and the orbit wiU deviate fromthe equator less than at any… … PERIOES OP THE MOON. 163 ^ 4. MOTION OF THE PERIGEE. If tKe sun exerted no disturbing force on tlie moon, tlielatter would move round the earth in an ellipse accordingto Keplers laws. But the difference of the suns attrac-tion on the earth and on the moon, though only a smallfraction of the earths…
Astronomy
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