Sundial: 735
State/Province:  Arizona Country:  USA
Dial Type:  Globe or Hemispheric Condition:  Excellent
  Latitude and Longitude: 31° 57.505' N  111° 26.379' W
  • Kitt Peak National Observatory
    Visitor Center Patio
    56 miles southwest of Tucson on State Highway 386 on the Tohono O'odham Indian Reservation
  • A fused silica glass spherical lens projects a solar image spot onto the inner surface of a spherical segment of glass with a frosted area inscribed with hour lines and Arabic hour numerals. Time is read from the bright spot of light on the frosted surface while standing under the dial. Dial is mounted atop a pipe pillar on the patio of the Visitor Center.
General Information:
  • Owner: AURA/NOAO
  • Designer: Dr. Stephen F. Jacobs
  • Builder:
  • Construction Date: 1997
  • "Sun Clock Illuminates Sphere Optics," Photomics.com, June 2005
    Optics & Photonics News, October 1997

Last Revised: 6/16/2013 10:15