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Elevation: 728 m = 2389 ft. Latitude: +32° 13' 59.5" N Longitude: 110° 56' 56.3" W Time Zone: +7 hours Primary Mirror Diameter: 0.533 m = 21 inches Primary Focal Ratio: f/ f/ Cassegrain focus Plate Scale: microns/arcsec = Useful Field of View: arcsec diameter Secondary Diameter: cm