Solar eclipse images formed by diffraction by the openings among the leaves of the trees. Photo by Eduardo Libby

Shadow on the Sun: Crescents on Earth

It happened once more, as predicted by Pythagoras and Galileo’s Music of the Spheres. Our Moon passed in front of our Sun, just far enough this time that it didn’t quite hide it all the way to its borders. The Sun’s Corona was not revealed but created what has been called a ring of fire.

I have had the pleasure to watch several solar eclipses in my life, including total ones and believe me: nothing matches a total solar eclipse! Next best to me are annular eclipses like the one we just saw across the American continent. I got to see one as a child and I remember very well watching it with a solar filter on my telescope.

Costa Rica, where I live, was not quite in the best place to see the ring. We just got a more darkened than usual partial eclipse. What to do? I decided to photograph the light spots formed by tree leaves that are actually a pinhole-camera like projection of the Sun. Instead of being round they look like crescent moons during a partial solar eclipse.

Yes, I also got a photo of the Sun when clouds were moving in and I was able to make a photo without filters.

Have you seen the little crescents on the ground before?

A view of a partial solar eclipse and trees.
Partial solar eclipse in Costa Rica, near noon, just as clouds moved in.
A couple that was watching the crescent-like images on the sidewalk.
A couple that was watching the crescent-like solar eclipse projected images on the sidewalk.
Crescent-like solar-eclipse images formed by the trees. Photo by Eduardo Libby
Crescent-like solar-eclipse images formed by the trees on a pedestrian bridge at the University of Costa Rica
Solar eclipse images formed by diffraction by the openings among the leaves of the trees. Photo by Eduardo Libby
A detail of the solar eclipse images formed by diffraction from the openings amongst the leaves of the trees.

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