What are three stars together?

Together, these three stars are the belt of Orion.

Orion is one of the most conspicuous constellations in the winter night sky in the northern hemisphere, and the most striking part is the belt formed by three stars connected together. These three stars are called Betelgeuse I, Betelgeuse II and Akisaka respectively, which correspond to ζ, ε and δ stars in Orion respectively. These three stars are located in a straight line, forming the brightest and most recognizable feature of Orion. In traditional astronomy and folk in China, people often refer to these three stars as "Samsung", but it should be noted that this name may also refer to three nearby stars in other constellations. Anyway, when we look up at the sky in winter, we can see the main body of Orion, including the belt connected by these three stars.