UFO Sighting in Green Valley, Arizona on 2001-09-09 21:15:00 – Clear, light smoke-like swirling inside. moving 35–40 mph, could see through it.

My wife and i observed a 6' vertical cylinder shaped , smoke filled moving nnw to ss about 20 degrees above the horizon moving at 35 to 40 mph. we could see through it to the stars behind it. sighting lasted about 5 seconds.