Sighting in Paris, December 15, 2013

At around 11 p.m., a witness standing on their terrace was looking at a clear sky when they noticed a coloured, luminous phenomenon that stayed motionless. They watched it for several hours, first with the naked eye and then through binoculars. They heard no particular noise. No other witness account was collected.

The investigation established that this fixed point of light was the planet Jupiter, shining brightly that evening in the eastern sky. The colour changes seen through the binoculars were partly due to turbulence in the atmosphere, which causes twinkling, and partly due to the binoculars' optics, which often make a white point of light look iridescent. GEIPAN classified the case as A: an observation of the planet Jupiter.