===== Comparison between the 200 lines and the 900 lines grating =====

The following figures show spectra of approximately 700 Å width for different stars. The <color blue>blue</color> and <color red>red</color> spectra were taken with the grating exhibiting 900 lines/mm and 200 lines/mm, respectively. The spectral resolution in the <color red>red</color> spectrum should be higher by a factor of seven.

==== Alkaid ====

{{ost:spektrograph:spectra:alkaid_comp.png}}

==== Betelgeuse ====

{{ost:spektrograph:spectra:beteigeuze_comp.png}}

==== Delta Orionis ====

{{ost:spektrograph:spectra:delta_ori_comp.png}}