32.3%31.4%24.7%10.4%1.3%
0.32-m Ritchey-Chretien + CCD0.4-m Ritchey-Chretien + CCD0.40-m Ritchey-Chretien + CCD0.35-m f/11.0 Schmidt-Cassegra...0.35-m Schmidt-Cassegrain + CC...G90 Three Buttes Observatory, Tucson | Top 10 Facilities