Brennan, Martin Stanislaus, 1845-1927 · New York : The Catholic publication society co. · leaf 76
days. The Moon travels from oneposition in the heavens back to the same position, rela-tively to the sun and earth, in 29J days. This is thelength of a lunation, or lunar month. Moons Phases.—As the travelling Moon thus changesits positions it presents different aspects or phases. Itis new, in the… … Fig. 8.—Phases of the Moon.in its course, it gradually passes more and more betweenthe earth and sun, getting in its own shadow as far asconcerns us, and the portion of its surface reflecting 68 Astronomy: New and Old. to us the sunlight grows smaller and smaller. Thus,after being full, it rises…
Astronomy
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