Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 118
seen them enlarge more and more, as the Sun arose and enlightenedthe sides of the mountains.] 510. When is the best time to examine the Moon with a Tele-scope ? Near the First or Third Quarter. 511. Why is this? Because the shadows of objects are then seen at rightangles with the line of vision,… … [1. The shadows are always projected in a direction opposite the Sun, or toward thedark side of the Moon; and as her eastern limb is dark from the change to the full,and her western from the full to the change, of course the direction of the shadowsmust be reversed. 2. Suppose a person stationed at…
Astronomy
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