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Page:Popular Science Monthly Volume 57.djvu/513

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503
CHAPTERS ON THE STARS.
PSM V57 D513 Spectrum of sirius.png
Fig. 1. Spectrum of Sirius.
 
 
PSM V57 D513 Spectra of aurigae and sun.png
Fig. 2. Spectra of α Asuræ and sun.
 
 
PSM V57 D513 Spectra of bootis and geminorum.png
Fig. 3. Spectra of α Bootis and β Geminorum.