The geography of the heavens : and class-book of astronomy : accompanied by a celestial atlas (1860)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868 · New York : Mason Brothers · leaf 281
ir position in space, nor withrespect to each other. But it is a remarkable and well-ascer-tained fact, that both are in a state of constant change. Wehave seen that the plane of the Earths equator is constantlydrawn out of place by the unequal attraction of the Sun andMoon acting in different… … will the north pole be 12,500 years hence ? 590. What is the Obliquity of the Ecliptic t691. Is this angle always the same? What variation of the equinoctial? PRECESSION OF THE EQUINOXES. 279 592. The displacement of the ecliptic, on the contrary, is pro-duced chiefly by the action of the planets,…
Constellations · Stars
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