About HIP 13573
HIP 13573 is an epic star. It lies about 1,517 light-years from Earth, sits in the constellation Per, shines at apparent magnitude 9.95 and has spectral type O9.5Ib.
Its spectrum reads O9.5Ib — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.