Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 136
ibration. 1 From Latin libratio, a balancing. THE MOON. 131 These three librations together enable us to see atvarious times nearly one-fifth of the opposite side ofthe moon, so that in all about six-tenths of the moonssurface can be seen by us. 126. The Harvest Moon.—A celestial globe showsvery… … Fig. 29.—The Harvest Moon. that the full moon rises. The figure shows the fullmoon just on the horizon at sunset on September22. At the time of sunset on September 23 the moonhas moved its regular daily journey of 13° along theecliptic1 to the position shown in the figure. It is nowbelow the…
Astronomy
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