Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 330
ular, it varies very little from45°. These planets,therefore, seem to havean oscillating motion,first swinging toward theeast of the sun, and thentoward the west of it, asalready explained in PartI., Chapter IY. Since,owing to the annual revo-lution of the earth, thesun has a constant east-ward… … Fig. 84. year, the same as that of the sun. If, again, we draw a line JES C from the earth throughthe sun, it is evident Uiat the first point 7, in which thisline cuts the orbit of the planet, or the point of inferiorconjunction, will (leaving eccentricity out of the question)be the least distance…
Astronomy
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