A large, long triangle way up in atmosphere at night blocking out the stars behind it. It was totally silent with 3 red lights at each tip. The bottom was dark so it blended in with the nights sky. The only way I saw it was it was blocking out the stars. Totally silent and went from west to east. It was so quick that by the time I said to the person I was with" hey look at that" it was gone. It was no optical illusion and there was no drugs or alcohol involved. I have been a sky gazer with a telescope for a long time. This happened in Santa Rosa California. I have also seen a cigar shaped UFO over Nuremberg Germany in the mid eighties. This too was silent and just hovered way overhead for an hour. It was a dull beige color with no other features. In 2011 I was working in an eyeglass shop in NC and a man came in in a trench coat on a summer day. He asked me to fix his glasses. As I was doing this I made small talk with him and he said " I appreciate your attempt to socialize but no more questions. He sounded just like a computer, He had to be a man in black. There is 2 power plants near the shop, one is coal and the other is nuclear. I know what I have seen and none of these occurrences are made up or imagined.