Which star do the shipwrecked Buzz toys follow toward Star Command?

The shipwrecked Buzz toys follow the North Star toward Star Command.

In Toy Story 5, a group of high-tech Buzz Lightyear toys is stranded after emerging from a wrecked shipping container. Still believing they are genuine Space Rangers, the toys interpret the night sky through their space-adventure worldview. They build a raft and use the North Star as their navigational beacon while trying to reach Star Command.

The North Star is the common name for Polaris, the bright star positioned close to the north celestial pole. It appears nearly fixed while the rest of the night sky seems to rotate, making it a traditional guide for navigation. Vega is a different star, while Polaris Australis is the name of the southern pole star, Sigma Octantis. Sirius is the brightest star in the night sky but is not the North Star.