About HD 122137
HD 122137 is a trash star. It lies about 784 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 8.09 and has spectral type A1/A2+....
Its spectrum reads A1/A2+... — 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.