About HD 166427
HD 166427 is an uncommon variable star. It lies about 799.4 light-years from Earth, sits in the constellation CrA, shines at apparent magnitude 8.14 and has spectral type Ap Si.
Its spectrum reads Ap Si — 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.