Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 220
aking 11loops in each revolution, the smaller circle having a diameter of about one-fifth of the larger one, uponwhich its centre moves, sincethe diameter of Jupiters orbitis about five times that of theearth. As a consequence, wehave an apparent back-and-forth movement of theplanets among the… … Fig. 74.Apparent Geocentric Motion of Jupiter. 289. Explanation of Terms.—Fig. 75 illustrates the mean-ing of a number of terms which are used in describing aplanets position with reference to the sun, viz., Opposition,Quadrature, Inferior and Superior Conjunction, and GreatestElongation. E is the…
Astronomy · Constellations
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