About Megrez
Megrez is an uncommon star. It lies about 80.5 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 3.32 and has spectral type A3Vvar.
Its spectrum reads A3Vvar — 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.