About HD 116781
HD 116781 is a rare variable star. It sits in the constellation Cen, shines at apparent magnitude 7.61 and has spectral type O9/B1ab:e:.
Its spectrum reads O9/B1ab:e: — 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.