“Farfadets” appeared in the sky of Haute-Savoie a few days ago. This meteorological phenomenon, which brings out red flames almost impossible to observe with a naked eye, was captured by a photographer amateur of thunderstorms in neighboring France.
Also called “red sprites” Or “Red Sylphs”, “Farfadets” are part of the transient light phenomena (transient luminus event or tle in English) and are linked with the formation of thunderstorms.
>> Read also: The “Tle” or the hidden side of thunderstorms
The images taken from the French side of Lake Geneva and transmitted to the RTS by photographer Marc Favre date back to June 25.
This phenomenon occurs above thunderstorms, at altitudes between 50 and 90 km. Very fleeting, it only lasts a few milliseconds and can only be entered with a camera or a camera.
Red coloring is produced by the ionization of Diazote N2 present at this altitude.
Farfadets were photographed for the first time in 1989, although they have been suspected since the beginning of the 20th century.
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