Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 179
nd SP is greater than theradius of the Moon, the eclipse wUl be total, if less it wiU bepartial. The distance of the centres at any time t after oppo-sition can be readily written down in terms oi t: by placingthis distance equal to SA and solving for t, the times ofcommencement and ending of the… … Fig. 50.—To illustrate a Solar Eclipse. 83. Solar Eclipses.—In Fig. 50, S, E represent the centresof Sun and Earth respectively and CD is the Moon. P (notmarked in the figure) is the vertex of the cone formed by theexternal tangents to the Sun and Moon, Q the vertex of that ECLIPSES AND…
Astronomy
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