About 51 UMa
51 UMa is a common star. It lies about 257.2 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 6.01 and has spectral type A3III-IV.
Its spectrum reads A3III-IV — 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.