Philip Eden wrote:
Absolutely stunning sequence of colours here in south Beds ...
yellow, gold, pink, crimson, deep salmon, and now
nectarine.

Reminiscent of those sunsets in Feb 2008.

Philip



spaceweather.com make a mention of this sunset today and have a link to
this Optics Picture of the Day article...

http://www.atoptics.co.uk/fz372.htm

....due to Polar Stratospheric Clouds probably.