Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 48
ill expand to view as weapproach them, till they assume all the magnitude and splendor of the sun himself.] LESSOJST X. LIGHT AND HEAT OF THE PLANETS. 17 9. From what source are the Light and Heat of the Planetsderived ? PRIMARY ASTRONOMY. 41 From the Sun. 180. What effect does the variation in… … Here the light is seen passing in straight lines, from the sun on the left toward theseveral planets on the right. It is also shown that A, B, and C receive equal quanti-ties of light, though B is four times and C nine times as large as A; and as the lightfalling upon A is spread over four times as…
Astronomy
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