Sun - Up - at - Quorum - Addison ,TX
Posted by: 
kilroy18
N 32° 56.910 W 096° 49.484
14S E 703342 N 3647677
A solar equinox marker. It is found on the roundabout at the intersection of Quorum Dr. and Landmark Place in Addison, TX.
Waymark Code: WMV2HP
Location: Texas, United States
Date Posted: 02/12/2017
Views: 9
Near midday on March 21 and September 21, when days and nights are of equal duration, the sun's rays pass through the aperture in the sculpture and strike the sphere on the ground below. Accounting for the uneven elliptical course of the Earth's orbit around the sun, the inclination of the Earth's axis, and the time it takes light from the sun to reach the Earth, the actual sun's passage comes at:
12:34 PM on March 21st and
1:20 PM on September 21st.
Title: Sun - Up - at - Quorum
Artist: J.V. House
Media (materials) used: Steel
Location : Roundabout at the intersection of Quorum Dr. and Landmark Pl in Addison, TX
Date of creation or placement: Unknown
Scientific Principle(s) being demonstrated:
Angle of the sun during the equinoxes.
Briefly explain if the experiment was effective for you. Could it have been better?:
For the most part, yes. You can see what will happen; however, I did not visit it on either an equinox or on a sunny day.
When is the apparatus/experiment available to the public:
Continuously. 24/7/365.
|
Visit Instructions:
To help give a different perspective and to improve the Waymark for future visitors please tell us about your visit and upload a favorite photograph(s) you took of the Waymark. What was your “Wow” moment?