Sundials - World's Oldest Clocks

North American Sundial Society

Atlantic Beach  

Sundial 732
State/Province:  Florida Country:  USA
Dial Type:  Polar Condition:  Excellent
Latitude:   30° 21.24' N Longitude:   81° 24.59' W
Location: Access: This is a private dial. See below for access details.
  • Fleet Landing (retirement community)
    1 Fleet Landing
    Between lake and swimming pool, near Coleman Center
    Atlantic Beach
 
Description:
  • A 12 x 12 inch polar dial of printed plastic. Unlike the typical polar dial, this dial uses point-in-space or nodus gnomons. The dial face is aligned in the polar plane; separate face markings and gnomons show summer-to-winter and winter-to-summer hour and date lines corrected for EOT and longitude. Time and date are read from the shadow of only the tip end of each gnomon rod. The three foot high PVC dial support allows the face to be rotated about the polar axis; the face is pointed at the local meridian for ST and rotated 15? east to set for DST.

    The face has hour lines for 8 AM to 4 PM and date lines for each month. The hour and date lines were designed for the dial location, median solar declination and the equation of time over a leap year cycle, atmospheric refraction and shadow shortening due to the 90? included angle conical gnomon points. The dial is accurate within two minutes. Dial face is marked with location, coordinates and designer name.

    This dial is located within Fleet Landing, a gated retirement community. Please contact Russell Boyd, the dial owner/designer at 904-241-8544 to arrange visiting the dial.
 
General Information:
  • Owner: Russell R. Boyd
  • Designer: Russell R. Boyd
  • Builder: Russell R. Boyd and printer
  • Construction Date: 11-May
 
 
Attachments Available:

Last Revised: 7/22/2012 9:38