Mt Bigelow 61-inch Kuiper Telescope
      ===================================
      Mt. Bigelow (elevation 8230 ft/2510 m) is part of the Steward
      Observatory Catalina site, located north of Tucson, AZ and operated
      by the University of Arizona.  The following information is quoted
      from this website:
 
         http://james.as.arizona.edu/~psmith/61inch
 
      as it appeared in 21 November 2005.
 
        Telescope & Site
        ----------------
 
        Elevation:        2510m = 8230ft
        Latitude:         +32 24.0' 59.3'' N
        Longitude:        110 44' 04.3'' W
               These coordinates are accurate to about 1''.
        Time zone:        +7 hours
 
        Primary Mirror Diameter:  1.54m = 61 inches
 
        f/13.5 Cassegrain focus:
            Plate Scale: 100 microns/arcsec = 10.0 arcsec/mm (nominal)
            Useful Field of View: >435 arcsec diameter
            Secondary Diameter: 40.96 cm
        f/45 Cassegrain focus
            Plate Scale: 351 microns/arcsec = 2.85 arcsec/mm (nominal)
            Useful Field of View: >325 arcsec diameter
            Secondary Diameter: 14.5 cm
 
        Typical Seeing: 1-2''