Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Rees Orme · leaf 229
ecc. various positions of the moon in its orbit,and S the sun, at the vast distance above stated; as isshown, then, in the figure, the hemisphere of the lunarglobe turned towards it (on the right) will be bright, theopposite dark, wherever it may stand in its orbit. Now, inthe position A, when in… … the dark hemisphere are presented to O, and the samein the opposite situation G: these are the first andthird quarters of the moon. Lastly, when at E, thewhole bright face is towards the earth, the whole darkside from it, and it is then seen wholly bright or fullmoon. In the intermediate positions…
Astronomy
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