Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 177
instrument are shownin Fig 174. This spectroscope may be attached to thetelescope in the same manner as the dispersion spectroscope.When the spectroscope is thus used, the eye-piece of thetelescope is removed. Spectra. 154. Continuous Spectra. — Light from an incandescentsolid or liquid which has… … Fig. 174. one another. The spectrum is entirely free from either lightor dark lines, and is called a continuous spectrum. 155. Bright-Lined Spectra. — Light from a luminous gasor vapor gives a spectrum composed of bright lines sepa-rated by dark spaces, and known as a bright-lined spec-trum. It has…
Astronomy
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