Gallivan Utah Center Sundial - Salt Lake City, Utah
Posted by: 
Lord Mot
N 40° 45.868 W 111° 53.389
12T E 424898 N 4512991
Located between 200 & 300 South and Main & State streets in Salt Lake City
Waymark Code: WMBCG5
Location: Utah, United States
Date Posted: 05/05/2011
Views: 11
I'll be honest, I know how sundials work, but have never been able to figure this one out until I found the web page listed below.
This Sundial shows the moment of the Sun's transit of the local summer solstice indicated on the dial plate at the base of 2 1/2 story tall sundial. Astrometric solstice occurs when the Sun reaches an ecliptic longitude of 90 degrees - a point located in the constellation Taurus that marks the beginning of the summer season. When the Sun reaches this ecliptic position, a person on the Earth sees the Sun at its highest apparent local altitude. This ecliptic position of the Sun defines the Tropic of Cancer (23° 26' 22" north latitude) when it's projected onto the Earth's globe. At the instant of this year's astrometric solstice, on June 21, 2006 at 12:26 UT, the Sun was directly over western Africa on the border between Mauritania and Mali. Each geographic location on the Earth experiences its own local summer solstice at local apparent noon over the next 24 hours.
Sundial Type: Analemmatic - Vertical gnomon with elliptical dial
Related Web Site: [Web Link]
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Visit Instructions:
Only one log per location per person. You should log your own waymarked sundials as well.
GPS in photo optional.