All mirrors are of Cer-Vit with aluminum coatings. Switching back and forth between integrated and imaged light takes about 15 minutes for experienced observers. The east auxiliary telescope feeds the main vertical spectrograph, the vertical solar-stellar spectrograph, an open port in the main observing room and the FTS room. A 41-cm flat mirror can be used for visitors requiring a horizontal beam. The east auxiliary heliostat is of fused silica, while the No. 2 mirror is of Cer-Vit.
Coatings are aluminum.
The No. 3 mirror is of aluminum. All three mirrors are of Cer-Vit with aluminum coatings. Last updated by Megan Sosey on Monday, July 2,1998.