About HR 3221
HR 3221 is a trash star. It lies about 493.4 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 6.43 and has spectral type A7Vm.
Its spectrum reads A7Vm — 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.