The elements of theoretical and descriptive astronomy, for the use of colleges and academies (1872)
White, Charles J. (Charles Joyce), 1839-1917 · Philadelphia, Claxton, Remsen & Haffelfinger · leaf 143
alunar and a solar eclipse would occur in every month. Owing,however, to the inclination of the plane of the moons orbit tothe plane of the ecliptic, the latitude of the moon is usually toogreat to allow either kind of eclipse to take place; and it is onlyin special cases, when the moon is in or… … Fig. 57. 136 LUNAR ECLIPSE. the earth. Draw the lines BH and CG, tangent to the twospheres. These lines will meet at some point A, and AHEGwill be a section of the shadow cast by the earth. The whole shadow is of a conical shape, the vertex of the conebeing at A; and a lunar eclipse will occur…
Astronomy
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