Bosnia - 07-17-09

I just received this picture from my sister who lives in the northern part of Bosnia. A couple of weeks ago, she was standing on the balcony of her apartment when she decided to take a camera and snap beautiful skies on the horizon.

The object in the picture was not visible at the time she took this photo. Once she uploaded this photograph onto the computer, this is what she saw.

Any thoughts?

Thank you,

Taken on 07-17-09, with Canon Powershot SC 1000