So many people out there at 5:45. The cloud cover was 0%, so it looked a way that I've seen many times. Type #3 I'll call it. The completely clear sky. Type #1 is a completely clouded sky, Type #2 is fully clouded but with some texture. The only other type I've identified is Type #5, which is distinctive, with a golden zigzag. I'll get to 10 types once I've seen the full annual cycle, which will be on September 8th.
Anyway, this is the open thread to get you through the night and onto the next sunrise. Keep watch.