Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 140
Fig. 31.—A Group of Lunar Mountains. jagged. This is caused by the rough mountainous sur-face of the moon. Near the terminator, round pits, re- THE MO OK 135 sembling pock-marks, will probably be seen : these arethe great crater mountains. It is their dark shadowsbeside them that make all these… … Fig. 32.—The Lunab Mountain, Copernicus. bright rays or streaks that run out in all directions fromsome of the mountains constitute the most interestingfeature of the full moon. 128. The Geography of the Moon.—The dark patcheson the moons surface were formerly supposed to be 136 ASTRONOMY. seas,…
Astronomy
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