Which constellation does Betelgeuse belong to?

Betelgeuse is the fourth star of Betelgeuse, also known as Alpha Orion, and it is a red Supergiant star in Orion (the first star of Orion). It is the tenth brightest star in the night sky except the sun.

In the winter night sky, it forms a winter triangle with Sirius in Canis major and Nanhe III in Canis minor. Although it is the alpha star of Orion, actually the beta star of Orion (Betelgeuse) is brighter than it most of the time. In ancient astronomy in China, it belongs to the Seven Dwellings of West White Tiger (Seven Dwellings of West Palace White Tiger: Kui, Lou, Wei, Chang, Bi, Gou and Shen).

Betelgeuse, from Arabic, means underarm.