A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 310
movingonce a year around the circumference of a circle equal to the earths … Geocentric Motion of Jupiter from 1708 to1720. (Cassini.) 298 THE TLANETS. orbit, while the centre of this circle itself goes around the sun uponthe real orbit of the planet, and with a periodic time equal to that ofthe planet. Jupiter, for instance, appears to move as in Fig. 161,making eleven…
Astronomy
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