O-type stars

stellar system in the constellation Carina

planetary nebula in the constellation Cygnus

planetary nebula in the constellation Lepus

emission nebula in the constellation Norma

hot, massive star of spectral types O or early-type B that form in OB associations

stellar classification

star

group of early-class stars weakly gravitationally bounded

star in the constellation Dorado

Wolf-Rayet star, part of the SBC9 1232 binary system