early-type stars

early-type stars

Hot stars of spectral type O, B, and A. They were originally thought, wrongly, to be at an earlier stage of evolution than late-type stars.
References in periodicals archive ?
Morgan and others investigated the distribution in distance of luminous early-type stars along the Milky Way, and the first vestiges of spiral arms became discernible.
The remaining sources include photospheres and winds of the massive and hot early-type stars, cataclysmic variables, active galactic nuclei (AGNs), and such unique objects as the Vela supernova remnant, Cygnus Loop, and Jupiter-Io torus.