Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 274
he point where thecelestial sphere is met by the axis of the Earth prolonged.The celestial equator is the plane of the terrestrial equatorproduced. The axis of the Earth does not move relativelyto the Earths crust. The Earths equator always passesthrough the same countries — Ecuador, Brazil,… … Fig. 158.—Diagram to Illustrate the Cause op Precession. The Cause of Precession. The cause of precession, etc., is illustrated in the figure, whichshows a spherical Earth surrounded by a ring of matter at the equa-tor. If the Earth were really spherical there would be no precession.It is, however,…
Astronomy
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