Full Description & Details

Earlier this summer I took a few sunset shots from my front yard in North

Texas with my 5 megapixel Sony camera.

It wasn't until I copied the images to my pc that I noticed a dark object in

one of the pictures, below the clouds.

The object resembles a triangle. I did not see or hear anything unusual

when this was taken. I shot 1 or 2 other pics of the same area within 60

seconds of this image, but the shape is nowhere to be found in the other

photos.

These originally are 5 megapixel images, scaled down for webposting.

What could this be?