What kind of "flying object" did i just see ?

Funny thing, I also saw something last night. Moving north to South, Northern California area.

It was simple as this, when I first looked up there was a very dim white light on the sides near the nose and it was moving rapidly south, no sound at all. From the time I saw it directly overhead to the time it was no longer visible in the horizon was about 5 seconds. It reminded me of a hang-glider with a thin nose and thick rear part of the craft. Both thick width and breadth in the rear - like a wedge. It was not a balloon or blimp. It wasnt making impossible speed, but not slow either. Just too fast for anything I have ever seen in the sky before.

Oh well.

hopefully there will be a time where everyone will have a High Def camera with night vision pointed at the sky. Once EVERYONE has an automated camera alway on, then we may have some real data to compare with.