Colourful morning halos at Bagnères-de-Bigorre

Summary

On 28 May 1978, around 9 a.m., a witness in Bagnères-de-Bigorre saw a series of multicoloured halos apparently radiating from the rising sun. The phenomenon lasted 6 to 10 minutes. There were no other witnesses. The most likely explanation is a lenticular cloud, an atmospheric phenomenon that can produce unusual shapes and colours easily mistaken for unidentified objects.