I was outside on the deck looking up at night sky. I looked to the south and noticed a triangle shape that was massive in size (200 FT - wing tip to wing tip) moving North towards Canada. The Craft had over a dozen lights on it and was completely transparent. The stars in the background were passing through it as it streaked through the sky in one fluent, quiet motion. The lights on the craft were visible the entire time and it seemed to be rolling. As quickly as it came into view it was gone within 3 seconds across the entire length of the sky.