Stars with absorption and emission hydrogen lines in their spectra

Beta and Gamma Cassiopeiae spectra taken through Rainbow Optics Star Spectroscope grating filter 200 lines/mm. Gamma Cassiopeiae displays distinct spectrum with hydrogen emission lines specific for B(e) type stars.

http://en.wikipedia.org/wiki/Beta_Cassiopeiae
http://en.wikipedia.org/wiki/Gamma_Cassiopeiae
http://en.wikipedia.org/wiki/Be_star