KnowraBlue supergiantLinked fromLinked fromThe 5 pages that link to Blue supergiant, each with the reason it gives.All 5Broader topic 1Narrower topic 2Compared with 2SN 1987ANarrower topic: SN 1987A’s progenitor was a blue supergiant, unlike the expected red supergiant.Red supergiantCompared with: Its high surface temperature contrasts with the cool, expanded envelope of a red supergiant.RigelNarrower topic: Rigel is classified as a blue supergiant, a rare and short-lived stellar stage.SupergiantBroader topic: It shows that supergiants need not be cool or red.Yellow supergiantCompared with: Its much higher surface temperature marks the opposite color extreme.