About Pherkad
Pherkad is an epic variable star. It lies about 486.8 light-years from Earth, sits in the constellation UMi, shines at apparent magnitude 3 and has spectral type A3II-III.
Its spectrum reads A3II-III — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.