I tried to overlap the three pics in photoshop to get an idea of the path of the object. I used the trees as reference, didn't need to do any
scaling, just moved the pics over each other and the size of the trees match perfectly. Which means nothing but that the pics were taken from same
position without moving and that the photographer used no zoom. It also means that the three shots were taken quickly one after the other. There is no
relative tilt in the pics, which also confirms that he just held the camera and clicked three times fast without moving much.(or he used a tripod?)
So the path is almost horizontal, not rising (as a balloon would do), in fact its coming down a bit (guessing from the image names, the rightmost was
taken first). Second, you can see the size of the object changing. (I've painted yellow points just to illustrate the size change). The fact that the
size of the trees is constant, implies that the object went further when the second shot was taken and came nearer when the third was taken.
There are no timestamps, unfortunately, nor any exif, to do velocity calculations. The blow-ups he shows are taken from the original images of higher
resolution, as blowing these pics does not result in such clear blow-ups. So I guess that the exif got lost during resizing and pasting of blow-ups
and re-saving process. In short it was not intensional.
Make anything you wish of the analysis

. I did it just for fun. No conclusions......
The closest explanation is that it can be a golden myler balloon. The way it looks rounded/inflated and the way its tumbling during these shots makes
it look so.
[edit on 25/6/2007 by rocksolidbrain]