How much longer will Ursa minor stars live?

The stars in Ursa Minor, including Polaris, vary in their lifespans based on their mass and evolutionary stage. Generally, main-sequence stars like Polaris can have lifespans ranging from tens of millions to several billion years. Polaris itself is a supergiant and will likely live for a few more million years before exhausting its nuclear fuel. Other stars in the constellation may have varying lifespans, with some potentially existing for billions of years longer, depending on their individual characteristics.