Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 297
>>;*> mi Fig. 8u.—Equatokial Refracting Telescope. will follow the star from rising to setting. This turn-ing can be done by clock-work so regulated as to move 292 ASTRONOMY. … Fig. 81.—Lick Observatory, Mount Hamilton, California.(Glass made by Clark, of Cambridge, Mass.; mounted by Waruer and Swazey, Cleveland, 0.) ASTRONOMICAL INSTRUMENTS. 293 the telescope just as fast as the star moves; that is,at such a rate as to make a complete revolution in aday. The star then…
Astronomy
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