A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 122
Here the sun and planet are represented as of the same size, and the shadow of thelatter is in the form of a cylinder. 246. When is the best time for viewing the moon with a telescope ? Why ? 247. What is an eclipse t A solar ? Lunar ? Cause of solar eclipses ? Oflunar ? When do lunar eclipses take… … 4^J>v In this cut, the opafce body is the larger, and the shadow projected from it diverges,or grows more broad as the distance from the planet increases. Here the luminous body is the larger, and the shadow converges to a point, and takesthe form of a cone. Pk SHADOWS OF THE PLANETS. V / Here,…
Astronomy
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