I was home with my children in the swimming pool, they sighted the object and they called me to see. I tried to relate the object to something that already knew or he/she had seen, but I didn't get, therefore it was different from everything that had already seen. This object stayed in the air during approximately 2 hours, being moved slowly, and it only disappeared as it disappeared in the horizon. Being moved in straight line in the Southwest sense for northeast The appearance was of a paper leaf in the bass part, and of a small sphere in the superior part. I decided to send the picture, because I read a matter in the site www.ig.com.br where has a picture of something very similar in http://igeducacao.ig.com.br/externo.html?url=http://area51.blig.ig.com.br matter: UFO photographed yesterday in Rio de Janeiro