The display of December 22, '14 over Oslo imaged 38 minutes after sunset by Lars Brubaek .
"I first photographed the clouds at 13:30 above a low sun. A few reddish wisps were still visible 51 minutes after sunset. Treatment: graduated filters to even out the large differences in luminosity and render the cloudlit ground fog visible."
Image ©Lars Brubaek, shown with permission
The image nicely captures the visual impact of nacreous clouds. A darkling sky, intense bright electric colours, films slowly stretching and curling high above.