Scratch 6 - Fireworks2 - The Rocket.

There are four Sprites. The rocket - best to get one off the Internet. Star the same. (But keep the sizes to no more than 200px high).

Sprite 1 - The Rocket

In this code - change the pen size higher to say 20 and see the difference.

Sprite 2 - The Star, which you can either draw or download and remove the background.
Star 3 - The Fade- a simple black background sprite.
Sprite 4 - Background sprite - again a simple black background .