On january 22th. 2011 between 10 to 12 am. on the town of Constanza in the center of country, I took a two consecutive photos (with a Nikon D80 camera 200 mm. lens) of my wife and son standing on balcony of a house in the mountain looking toward the valley, in the first photo appear an object far away in the sky (at left in the photo) with a classic UFO shape, in the second photo just one or two second apart the object is not present; note that the light and shadows of the objects and persons are the same.I would like to know your impresions about these photos after being analized by your experts.Thanks