Sample spectrum of the spectroscopic binary CX Draconis in the Hα region.
File names are in the form:
observation date followed by serial number, followed by file extension .fits, as in YYMMDD.NNN.fits prior to the year 2000 and YYYYMMDD.NNN.fits after.
Below are échelle spectra of CX Dra in the Hα region. Right click on link to download desired file.