I was in my appartment watching TV whilme under insomnia. Then I just looked at the window and saw a gray sky. I looked more to see if it would be a sign of rain for the morning, but I saw a weak light flashing like a star, but there were no stars visible due to the clouded sky and the city lights. Looking for a little bit more of a time revealed something connected to the light that was darker if compared to the sky and had a triangle shape. It was static for the time and just disappeared, stopped flashing and I couldn't see it's form again. Lost sight when I gave up observing and went back. When I tried to find the object again, I just missed it.