About HD 227018
HD 227018 is a rare star. It lies about 1,725.7 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 9.02 and has spectral type O7.
Its spectrum reads O7 — 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.