UFO sunset

Nocticulent clouds (night shining) I believe ice crystals in the upper earths atmospere at astrological twilight. Up here near Trondheim in Norway, the twighlight lasts for a few hours. We were particularly lucky to see this the whole day develop, into an outrageous firey sky by 3.30 pm. It's very icy here, and quite warm, about 1 degree plus. We came expecting the normal minus 15 at this time of the year. We also had heavy rain on the way back from our drive around the Soknedal area.