See this site, from the University of Illinois, for a broad overview of the spectra of stars and other astronomical objects. You can find out about many related subjects, including the electromagnetic spectrum, absorption and emission lines, spectral characteristics, and the classification of stars. The site also includes images and many links that provide more information.
%0 Electronic Source %A Kaler, James %D 1998 %T Spectra %V 2017 %N 23 October 2017 %9 text/html %U http://stars.astro.illinois.edu/sow/spectra.html
Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.