The elements of theoretical and descriptive astronomy, for the use of colleges and academies (1872)
White, Charles J. (Charles Joyce), 1839-1917 · Philadelphia, Claxton, Remsen & Haffelfinger · leaf 166
en Mars andJupiter. Up to September, 1871,117 of these minor planets hadbeen discovered. The earth is also a planet, lying betweenVenus and Mars. It is therefore a superior planet to Mercuryand Venus, and an inferior planet to the other planets. Itssidereal period is greater than the periods of the… … Fig. 65. with the plane of the ecliptic, ABDE the orbit of the earth, andthe circle KGH the intersection of the plane of the ecliptic withthe celestial sphere. Suppose the earth to be at E. When theplanet is at P, between the earth and the sun, or at Pnf, on theopposite side of the sun to the…
Astronomy
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