About HD 142546
HD 142546 is a trash star. It lies about 332.8 light-years from Earth, sits in the constellation Nor, shines at apparent magnitude 7.87 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.