Why are there two palaces in Wei Zi's astrolabe?

Because Wei Zi's astrolabe has four flying stars. That is, the same house will express the same thing (essentially one thing, but described by two houses), and one house has problems, and the other house also has problems. There are 12 houses in China astrolabe, and each house represents different social and interpersonal relationships in life, including life house, brother house and so on. Every house has stars, big and small, including main stars, auxiliary stars and miscellaneous stars. Each star has its own characteristics, but each house is different. The combination of star and Yao is different, and there are more complicated flying stars.