Nacreous clouds from Whirlow

Some parts of the UK had a fine display of rare nacreous clouds on 1st February 2016. They were not too spectacular from Sheffield, but here is a small sector of the sky which had some visible. The view is almost due south and I had to shield the camera from the sun by moving into the shadow of the buildings.

The photo was taken with a circular polarising filter but no post-processing.

en.wikipedia.org/wiki/Polar_stratospheric_cloud