American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 58
0. Box 6715, New YorkCity. Astronomy in its Relations to Horology. .) 0»l« I f> NUMBER THREE. We had occasion to revert to the seven ele-ments of the orbit that are required to be de-termined if it is necessary to locate a planetin space. The reader may, by means of thefollowing diagrams, get a… … to be the elliptical orbit of a planet, S the sunsituated in one of the foci of the ellipse, andC the centre of the major axis. A is the firstpoint of Aries, as that is assumed to be thepoint of the vernal equinox; 5, 2, 6 repre-sents the plane of the ecliptic. The elementsof the orbit are : Pirst,…
Clocks and watches
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