What is the celestial B star mentioned in the ecliptic day and Mafia day in Yitong calendar?

Tianyi is one of the star officials of Ziwei Academy, which can also be written as "Tianyi". Near the right fulcrum of Wei Zi's right wall, there is a star official Taiyi with a similar name, both of which are symbols of the emperor in Chinese astrology.

The original Gong Tianxing, whose value is Fu Fei's palace, is Tianyi. For example, Fu Fei falls into one palace, Tian Pengxing is Tianyi, Luo Kun is Second Palace, Tian Rising is Tianyi, Luo Zhen is Third Palace, Tian Chongxing is Tianyi, and so on. In the trial, Tianyi was the defendant and the value operator was the plaintiff. B day gives birth to a value operator, which is beneficial to the plaintiff and unfavorable to the defendant; Heaven meets heaven, the defendant is right and the plaintiff is unreasonable; To measure debt collection, the value operator is the creditor, Tianyi is the debtor, and Shangmenguan is the debt collector. If the three are combined, this debt will be repaid; B the daily value operator, which hurts the door, pays all the principal and interest; Tianyi gram operator hurts the door, and this debt is difficult to repay; Nine planets Yin Fu, debt collection; Eight chanting, the Lord is still late, and he also intends to collect debts.