Lessons in astronomy including uranography. A brief intoductory course without mathematics (1896)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston, London, Ginn and company · leaf 111
), the side presented to us is dark, and the moon isthen invisible. A week later, at the end of the first quarter,half of the illuminated hemisphere is visible, and we have the 100 THE MOONS PHASES. [§140 half-moon just as we do a week after the full. Between thenew moon and the half-moon, during… … Fig. 19. —The Moons Phases. of the lunation, we see more than half of the moons illumi-nated side, and we have then what is called the gibbousphase. Fig. 19 (in which the light is supposed to come from a point farabove the circle which represents the moons orbit) shows the way inwhich the phases…
Astronomy
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