Amateur photographer’s shot of Dordogne skies sparks NASA interest
The remarkable image captures a rare phenomenon above a French countryside chateau
The keen photographer spent at least an hour taking panoramic photos of the phenomenon to capture the rare image
Julien Looten / Flickr
A photo of an ‘airglow’ in the skies of Dordogne, taken by a French 22-year-old amateur photographer, has gone viral worldwide and attracted the interest of Nasa.
‘Airglow’ is the term for a rare meteorological phenomenon that happens as a result of a chemical reaction between the Sun’s rays and the atmosphere.
Certain molecules are destroyed by the Sun’s ultraviolet rays in the high atmosphere (around 100-300km up) during the day. The airglow then appears at night.
Julien Looten, a 22-year-old architecture student and keen amateur meteorological photographer, originally from Arras (Hauts-de-France), took the photo on January 21, near the chateau de Losse, near Thonac, in Nouvelle-Aquitaine.
He told France Bleu: “It was like a sort of green veil on a green horizon, and then it was multicoloured, going from green to orange, and sometimes purple.
“It was doing sort of waves. To the eye, it looks a bit like a sort of whitish cloudy veil. At the start, I thought that the sky was drawing a veil over itself. And then looking on the camera, I said to myself, ‘Oh, it’s an intense airglow.”
Mr Looten took around 40 photos over the course of an hour, with a timing of at least a minute for each one, to enable him to put together the remarkable image. He then posted it on his Facebook account.
It was then shared worldwide, and even shared by the North American Space Agency, NASA, on its social media accounts.
Mr Looten said: “In Dordogne, there are lots of iconic sites, whether castles or cliffs. It’s pretty good for these types of photos. The skies are very beautiful here. There isn’t a lot of light pollution and the few villages there are, tend to turn their lights off at night.”
He continued: “It was the first time that I’ve ever seen an airglow of such intensity. It was quite rare. I’ve had several replies from specialists from across the world.”
The phenomenon has been more common in recent years. Scientific website Futura said that this is probably due to increased activity of the Sun. More people have been able to take photos of it, too, as our cameras have become more sensitive.
The colours seen in the airglow phenomenon depend on the altitude at which the molecules emit their light.
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