Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 62
Fig. 15.—Cambridge Equatorial. weighing six tons, a tube forty feet long, which, withits appurtenances, weighs seven tons more. It movesbetween two walls only 10° east and west. The newParis reflector (Fig. 16) has a much wider range ofmovement. The Spectroscope. A spectrum is a collection of the… … Hector. THE SPECTROSCOPE. 49 star, candle, glowing metal, or gas, it is the spectrum ofI star, candle, glowing metal, or gas. An instrumentto Bee these spectra is called a spectroscope. Consider-ing the infinite variety of light, and its easy modifica-tion and absorption, we should expect an…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
