I was outside one evening on my porch and had set up my digital camera (Nikon D5100) so I could take pictures of the lightning from the thunderstorms coming through the area. I was creating about 10 second time lapse photos of the storm so as to try and capture bolts of lightning. I did not witness the object at the time as it was almost 10:00pm, it was dark, and the lightning was blinding. It wasn't until over a week later when going through my pictures that I noticed the object in the middle of the picture, either with the lightning bolt hitting the object or passing behind it. Because of the darkness, I did not see any sight of the object after the lightning, but that night I heard no sound of engines or anything other than a few rumbles of thunder and the falling rain. I considered it could be multiple things; a plane but there was no sound of an engine which should have been heard from that distance and wouldn't likely be out flying that low in the middle of a thunderstorm that late in this area; a bird or bat, which is also unlikely given the weather and the shape (as few birds have such a straight wingspan and few have body parts that hang so far below their wingspan); or an insect which would not likely have appeared so clear and with such thick lines given the lens I was using and the focus point.