Sundials - World's Oldest Clocks

North American Sundial Society

Burnaby  

Sundial 930
State/Province:  British Columbia Country:  Canada
Dial Type:  Equatorial Condition:  Excellent
Latitude:   49° 16.717' N Longitude:   123° 54.883' W
Location:
  • At the Simon Fraser University's Burnaby campus, opposite the entrance to the Administration Building and next to the Trottier Family Observatory. Approached from along the main path between the line of buildings you may miss the dial. From that perspective it is partially hidden.
 
Description:
  • This substantial and durable 30 inch anodized aluminium equatorial dial is mounted on a concrete plinth with a brass plaque showing the Equation of Time and usage instructions. The gnomon consists of two parallel plates each with a figure-8 analemma cut out. When the figure-8 apertures are rotated toward the sun, the dial illumination is corrected for the equation of time by reading the correct edge of the analemma for the date. If it the gnomon is turned sideways to the sun, the gap between the plates form a slit that produces a narrow beam for reading solar time adjusted to the longitude of the Pacific time zone. The hour scale is marked out at 5 minute intervals. Hours are labeled for Standard Time and for Daylight Saving Time.
 
General Information:Inscription:
  • Owner: Simon Fraser University
  • "SFU Equatorial Sundial" (on plaque mounted on pedestal). Includes description of solar and civil time and a table of the Equation of Time
  • Designer: Brian Albinson with Len Berggren
  • Builder: Blanco Lam & Jacob Maloney under the supervision of Dave Lewis
  • Construction Date: 2015
 
References:
  • Additional Information from the Plaque:
    "Dial constructed at BCIT by Blanco Lam and Jacob Maloney, supported by Dave Lewis (head of the Mechanical Manufacturing program at BCIT). Designed by Dr. Len Berggren, SFU and Brian Albinson. Materials donated by BCIT with additional financial support from the Department of Mathematics at SFU and the North American Sundial Society. The generous support of the Trottier Family Foundation is also gratefully acknowledged."

Last Revised: 2018-10-10 01:09