What is the so-called annual star in ancient China?

The "old star" mentioned by the ancients is now "Jupiter".

"Laoxing" orbits the sun from west to east, once every 12 years, so the ancients called the location of this 12-year-old star "Nianming".

The orbit of the old star is just opposite to the familiar direction and order of the twelve stars, which is very inconvenient to use. Therefore, ancient astronomers imagined a false old star running in the opposite direction to the old star and called it "Tai Sui".

Later, the imaginary old star was deified and became the head of the gods. Tai sui is the Lord of the gods, and his dignity is inviolable. If his position is difficult to build, move and marry, then the offender will be fierce.

The so-called "An Tai Sui" in the temple is like putting on record at the police station, asking Tai Sui Xing Jun to bless all believers.