Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 346
ut they will be invaluable to the studenthimself; for they will train him to see what is to be seen, and toregister it accurately. The changes in the appearance of lunarcraters during a lunation are very marked, and to seek the explana-tion of each particular change is a valuable discipline.… … Fig. 179.—A Drawing of the Lunar Surface, 322 ASTRONOMY. casus, etc. The craters are usually named after noted astronomers,Kepler, Copernicus, Tycho. 34. The Minor Planets.—We have next to consider the group of minor planets, also called asteroids (because theyresemble stars in appearance) or…
Astronomy
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