About HIP 21603
HIP 21603 is a trash star. It lies about 1,598.8 light-years from Earth, sits in the constellation Cae, shines at apparent magnitude 10.51 and has spectral type A2.
Its spectrum reads 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.