A couple of weeks ago while out walking I took this shot as I turned towards home at about 7.15.

Half an hour later I spotted an airliner heading towards Heathrow; normally I wouldn’t take a second glance at a  contrail  but the light  was  perfect so I took this photograph.

There must have been a landing delay as the aircraft suddenly veered right, then, several minutes later, turned again and flew back in the direction it had come.

It crossed back over its own contrail and circled round before heading once more in the direction of Heathrow. Usually I dislike these intrusive man-made vapour trails but that evening the effect was quite surreal, like an abstract painting across the sky.