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 175
planetsis equally true in reference to the superior planets. The elementsof the orbits are in both instances the same, and so are the me-thods by which the heliocentric longitudes of the nodes and theinclinations of the orbits are determined. In some other pointsthere is a difference between the… … MMMM Fig. 68. occurs at or near the time of opposition. The explanation ofthis retrogradation will be seen by a reference to Fig. 68. S is 168 PERIODS OF A SUPERIOR PLANET. the sun, EEEEm the orbit of the earth, and CGDP the orbitof a superior planet, the plane of which is supposed to coincidewith…
Astronomy
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