About HD 31640
HD 31640 is a trash star. It lies about 441.3 light-years from Earth, sits in the constellation Pic, shines at apparent magnitude 8.06 and has spectral type A4:m....
Its spectrum reads A4:m... — 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.