Stars and telescopes; a hand-book of popular astronomy, founded on the 9th ed. of Lynn's Celestial motions (1899)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911. Celestial motions · Boston, Little, Brown and company · leaf 44
he celebratedGerman optician,, they are always called Fraunhoferlines. The measurement of the positions and dis-tances of these lines in the spectra of different celes-tial objects, and the comparison of the spectra of theheavenly bodies with the spectra of incandescent ter-restrial substances,… … I FRAUNHOFER (1787-1826) raphy to celestial observations, and the instrumentsfor making exact determination of the comparativeamounts of light from different heavenly bodies haveboth inaugurated new fields of study which have borne,and are bearing, the richest fruit. S Si T- 18 Stars arid…
Astronomy
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