The Ritter Observatory Public Archive of Spectra of Polaris

Sample échelle spectrum of Polaris, a Cepheid variable, 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 Polaris with the spectrograph optimized for Hα unless otherwise noted. Right click on link to download desired file.