Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 502
we can suppose the three bodies represented with their7-clativc magnitudes anddistances we need onlyrepeat the graphicalconstruction of fig. 436to determine the dimen-sions of the cone of theshadow, and of the pe-numbra of the moon.The length LI of thecone of the shadowvaries between 57 and 59… … Fig. 436.
Physics
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