Betelgeuse in the constellation of Orion.
It is famous for being a star that is about to fall behind.
Its characteristics include being large, bright, variable, and nearing the end of its lifespan.
A representative star on which all kinds of research has been conducted.
This guy is no longer unified
It was revealed that it was a binary star.
The companion star was named Shiwara.
Now, astronomers have published numerous research results so far.
If it is a binary star, it must be recalculated.