Hey Sideeq

There are some details missing in your question, but assuming Pointer Star in Cosmology and Constellations; A Pointer star helps you to point to North Star and Polaris through a Big Dipper which is special pattern of stars, not a constellation.

In basic terms, they work as navigators to the North Pole Star between a cluster/pattern of stars. The two pointer stars are named: Merak and Dubhe.