Que es un SolarGraph

Tomado de wikipedia...

A solargraph is a long-exposure photograph which shows the path taken by the sun across the sky. Is a photographic method for recording the paths of the Sun. By doing so the invisible movements of the Sun can be made visible in landscapes.

This picture was taken from 09.06.2011 to 23.02.2012. Each session was of one hour from 4:00 pm to 5:00 pm.With more than 300 pictures.

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Please read a method to do a solar graph with a Pinhole camera: