In a small populated area of Teresopolis, Rio de Janeiro, near to dense vegetation, while shooting pictures of the sky (basically beautiful clouds that were in the same direction of the son), in the afternoon, I was surprised by the image of an unknown solid object , which left a trail.I did not see it at the shooting time, only when I opened the photos in Adobe a little while later.I was shooting at 1/1000s f/16, 28mm lense, with a Canon 70D.It was the 27 of January 2014, 17:42hs. My wife was also there.It seems to be making a descent course, and there seems to be a trail.I would be very grateful if Muffon could check what this might be.As a professioanl photographer it seems to me I captured an unknown solid object,entirely different from the the sun reflexions also present in the shot.If there any interest from Muffon I may provide the original RAW archive of the shot.Thank you.