Sundials - World's Oldest Clocks

North American Sundial Society

Lansing  

Sundial: 923
State/Province:  Michigan Country:  USA
Dial Type:  Vertical Condition:  Excellent
  Latitude:   42° 43.9415' N Longitude: 84° 32.9393' W
Location:
  • Impression 5 Science Center
    200 Museum Dr.
    Lansing, MI 48933

    Dial on the south side of the blue concrete wall.
 
Description:
  • This is a vertical, east-declining sundial, 22 ft 6 in by 15 ft 10 in. The dial is constructed of 6061 aluminum alloy pieces electrostatically painted and bolted together,then mounted on a concrete block wall. The position of the gnomon, hour, solstice, and equinoctial lines are corrected for longitude to show time zone solar time. Stenciled hour line numbers are changed to display DST or EST at appropriate times of the year. Visitors can determine the correct time by referring to an Equation of Time display. During the year, the triangular gnomon tip casts its shadow on the declination lines of summer and winter solstices and equinoxes. This is the largest known vertical sundial in Michigan, and one of the largest in the United States.
 
General Information:
  • Owner: Impression 5 Science Center
  • Designer: Tom Goodman, Cyrus Miller, Kevin Tracy
  • Builder: Impression 5 Exhibits Staff
  • Construction Date: September 2018
 

Attachments Available:

Last Revised: 2018-10-04 23:31