Familiar lessons on astronomy ; designed for the use of children and youth .. (1848)
Fowler, Lydia F. (Lydia Folger), 1823-1879 · New York, Fowlers & Wells · leaf 70
e bodies comes to a point.The sun illuminates half of the earths surface, or awhole hemisphere. But the moons shadow falls onbut part of this hemisphere, and, therefore, the sunappears eclipsed to only a part of those to whom he isvisible. 31. When the moon is at its greatest distance, itsshadow… … ANNUJ.AR ECLIPSE, 32. When all the rays of the sun are intercepted orcut off, the eclipse is called total. When only a partof the suns rays are intercepted, the eclipse is calledpartial. 30. Which ecHpses are ihe most frequent ? Most visible 1 Why ?31. What is the shadow of the moon at its greatest…
Astronomy
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