Linked from

The 17 pages that link to Betelgeuse, each with the reason it gives.

• Stellar evolutionBroader topic: Its size and luminosity show how massive stars expand after exhausting core hydrogen.

• Massive starBroader topic: Its evolution illustrates the expanded, cool phase of a massive star.

• Red supergiantBroader topic: Its changing brightness and resolved surface make it a prominent nearby example.

• Stellar mass lossBroader topic: Its resolved outflows provide a vivid case of mass loss from a red supergiant.

• Circumstellar envelopeBroader topic: Its surrounding gas and dust provide a resolved example of a massive star’s circumstellar environment.

• OrionBroader topic: Its reddish color and position define one corner of Orion’s familiar outline.

• Circumstellar mediumBroader topic: Its asymmetric surrounding material records changing outflows from a massive evolved star.

• SupergiantBroader topic: Its changing light and apparent size make it a prominent case for studying red supergiants.

• William HugginsBroader topic: Its spectrum helped Huggins investigate how stellar spectra differ with star type.

• Abd al-Rahman al-SufiBroader topic: Its recorded brightness is an example of the stellar estimates included in constellation entries.