A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1853)
Mattison, Hiram, 1811-1868 · New York, F. J. Huntingdon [etc.] · leaf 121
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 ? A solar ? Lunar ? Cause of solar eclipses ? Oflunar ? WThen do lunar eclipses… … &$wp>> In this cut, the opalce body is the largest, and the shadow projected from it diverges,or grows more broad as the distance from the planet increases.
Astronomy
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