Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 223
n it turns and climbs slowly back to superior conjunction again. 293. Motions in Latitude. — If the planets orbits lay preciselyin the same plane with the earths orbit, they would always keepexactly in the ecliptic; but while the orbits of the larger planetsnever go far from that circle, they do,… … Fig. 75*. — Motion of Saturn and Uranus in 1897. 294. Ptolemaic System. — Assuming the fixity and central posi-tion of the earth and the actual revolution of the heavens, Ptolemy,who flourished at Alexandria about 140 a.d., worked out the systemwhich bears his name. In his great work, the Almagest,…
Astronomy · Constellations
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