About HD 73819
HD 73819 is a common variable star. It lies about 556.6 light-years from Earth, sits in the constellation Cnc, shines at apparent magnitude 6.77 and has spectral type A6Vn.
Its spectrum reads A6Vn — 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.