UFO Sighting in Stonehaven, Scotland on 2017-06-17 20:15:00 - At bbq took shot of sunset, did not notice it at the time.

I was at a bbq with friends, it was a lovely evening so took two shots of the sunset. i did not see it at the time. the image is in both shots but in a slightly different place. the next day when i looked at the images in greater detail i noticed the mysterious object.