I photographed this oddity today, 09/10/08, high in the sky above Puttenham Common, Surrey, UK
Above is enlarged but otherwise untouched..normal mode...below is the same but in negative mode.
Nothing unusual was visible at the time of shooting, rather, this was 1 of 20-odd shots taken as an
experiment to see whether I could obtain something paranormal or phenomena otherwise invisible
to the naked eye.                                                                                                         Kenneth John Parsons