Indiglo coloured, triangle shaped craft that was visible for 30 seconds.I saw one object that I can compare to a stealth bomber aircraft in shape. It was teh brightest thing in the sky and the coulour was unique. The best way I can describe the colour is that of an "Indiglo watch". It was seen by me, a then senior in high school. It was moving slowly in the sky, slower than an airplane for about 15 seconds, it then picked up speed and took off.((NUFORC Note: Anonymous report. PD))