Welcome to the Community for the Eratosthenes Experiment 2015-19 for the Measurement of the Earth's Circumference! For details on the event and the latest photo contest, please see here and here. Guidelines for participation STEPS TO FOLLOW Find the time of your local noon at your location. Please use the web-based NOAA Solar Calculator or Solar Calculator or the Stellarium software (a short guide for using the Stellarium software to calculate your local noon at your location can be found here)
