It wasn't a long exposure. What you're seeing is the fuel/exhaust spreading out and catching the light in the upper atmosphere. There's two kinds of chemicals.

It wasn't a long exposure. What you're seeing is the fuel/exhaust spreading out and catching the light in the upper atmosphere. There's two kinds of chemicals. I guess the yellower is compressed liquid oxygen spilling out laterally as the rocket spins. I don't know what the blue is but it's probably the propellant.