EntityQ5886· pop 17· linked from 287 articlesOB starSign in to savehot, massive star of spectral types O or early-type B that form in OB associationsConnectionsstellar classificationEntityexotic starEntitygiant starEntitystarEntitybinary starEntitymolecular cloudEntitySunConceptSolar SystemEntityplanetEntityBlack holeConceptgalaxyEntitygravityEntitysolar eclipseEntityconstellationEntityultraviolet radiationEntitysupernovaEntitydigital object identifierEntityneutron starEntitywhite dwarfEntitypulsarEntityCategoriesB-type starsO-type stars