What stars have appeared in Wu Zetian?

In the twenty-second year of Zhenguan (648), at the beginning of June, there was a celestial phenomenon of "Taibai (star) seeing the sun" in Chang 'an. Accordingly, Tai Shigong obtained the divination of the female ruler Chang Sheng as "passing on the Three Emperors and Wu Dai".

Taibai Star is the morning star, and Wei Zi Palace is the home of the Big Dipper. There is an old saying: "The morning star lights up and the Big Dipper sets. Wei Zixing is the symbol of the emperor."