Astronography, or, Astronomical geography, with the use of globes : arranged either for simultaneous reading and study in classes, or for study in the common method (1854)
ye of an Observer on the Earth, tangents to the orbitare drawn to the celestial Sphere, of which a section of 60° is * See Figure 26. AN INFERIOR PLANETS MOTION. sas taken, passing from the Sign Aries through Taurus to Gemini.Suppose the Observer to see the Planet, it being at b in theHeavens, in… … move in the Heavens direct from Aries, through Taurus to Gemini.Then apparently being stationary for a time, the Observer willsee it—while in its orbit it moves from d through c, its inferiorconjunction, to b—apparently to have turned its course in theHeavens, and gone backward in the Ecliptic from…
Astronomy
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