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 499
lanet,and AN the Diftance of the Planet in its Orbit,feen from the Sun, from the Node N, which is toget away the Second Inequality of the Planet.Sdorcover in the rectilineal Triangle PST thereare giveri 57^ from the Theory of the Earth, andthe angle P TS the Latitude of the Planet by ob-fervarion,… … Book III* vf A s T R o N b M Y. 427 Proposition XXIL BT any Jtngk ohfervatlon of a Tlanet whatever^ Uclear it of its Second Inequality, and find its Difiance from the Sun, Let the Planet P (in Fig, %%.) be obferved, theLine of whofe Nodes is NSy from the Earrh T,with the apparent Latitude ?TB, Let…
Astronomy
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