Berry, Arthur,b. 1862 · London, J. Murray · leaf 160
piter. § 87J The Motion of the Planets 117 motion of the planet in a circle round the sun, while thesun moves round the earth, or, more simply, the earthround the sun. The synodic period of a superior planet could best bedetermined by observing when the planet was in opposition,i.e. when it was… … Fig. 46.- -The relative sizes of the orbits ot the earth and of asuperior planet. sidereal period could then be deduced nearly as in the caseof an inferior planet, with this difference, that the superiorplanet moves more slowly than the earth, and therefore losesone complete revolution in each…
Astronomy
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