About HD 93403
HD 93403 is a rare star. It lies about 2,673.4 light-years from Earth, sits in the constellation Car, shines at apparent magnitude 7.26 and has spectral type O5e.
Its spectrum reads O5e — 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.