To do an experiment to measure your approximate longitude and latitude using the sun, you will need to set up a vertical pole on a flat, horizontal surface in a sunny location, mark the position of the pole on the surface and mark the position of the pole end's shadow at various times around solar noon at your location. Solar noon is halfway between sunrise and sunset. The times for these for each day may be found often in your local newspaper or you may use a website calculators. Everytime you mark a "shadow" point, you should record the local time and, when done, convert to Universal Time. Use the following table to record you data:

To use the calculator,

• Select the month and day of the year when your measurements were done.
• Enter the height of the pole (distance from the horizontal surface to the pole tip). You may use any units of measure (centimeters, inches,...) but should use the same units for all the distance measurements.
• Select the number of samples that you have recorded (minimum number = 5).
• Enter your UT and Shadow Lengths for each sample and press ENTER
• When done entering all your values, press COMPUTE to estimate your longitude and latitude.