Alpha Orionis is more commonly known as which of the following?

Alpha Orionis is better known as Betelgeuse, which is one of the most prominent stars in the night sky and easily identifiable due to its reddish hue. Located in the constellation Orion, Betelgeuse is a red supergiant star that has fascinated astronomers and stargazers alike. Its distinct position in Orion, forming one of the "shoulders" of the hunter figure, contributes to its recognition.

Furthermore, Betelgeuse has been the subject of much study due to its size, brightness, and potential for supernova events. It is classified as a semi-regular variable star, with periodic changes in brightness that allow astronomers to study its characteristics and behavior in depth, making it a significant object in stellar research.