The elements of astronomy, physical and geometrical (1715)
Gregory, David, 1659-1708, Halley, Edmond, 1656-1742. Synopsis of the astronomy of comets, Adams, John, 1735-1826, former owner. BRL, Boston Public Library (John Adams Library) BRL · London : Printed for J. Nicholson ... and sold by J. Morphew ... · leaf 406
BookII. of AsTRONbMY. 349 conftruded before,) you may determine thepeine L of the Ecliptic, where the Verticalpaffing thro* B meets the Ecliptic; and the arcZ Ly name.y a portion of a vertical Circle, in-tercepted between the Zenith and the Ecliptic ;and the angle ZLE contained between the…
Astronomy
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