Calculation method of flying stars in Jiugong

According to Kong Xuan's geomantic theory, if you know the construction time of a building, you will have the Yuanyun plate of the building. Knowing the sitting direction of the building, you can discharge the fate of the building; If you want to know the quality of a building in a certain year.

Calculation method of the period 1900- 1999: subtract the sum of the last two digits of the current year with 10, and the figure is the star that flew into the palace that year. For example, in 1999, 9+9 =181+8 = 910-9 =1(White star enters the palace).

Calculation method after 2000: subtract the twice sum of two digits after that year from 9 (if the sum is a single digit, it can be directly subtracted), and the number obtained is the star that flew into the palace that year. For example, in 2005, 0+5=59-5=4 (four green stars entered the palace).

Arrangement:

The nine palaces are arranged according to the script, and the trajectory of flying stars starts from the middle palace and then moves in the numerical order of the script. Therefore, the flying star trajectory is also called the body trajectory (body gait). Shun Fei: Numbers are arranged from small to large. Reverse flight: the numbers are arranged from big to small.

According to the order of flight before and after, according to Luo Shu, it is arranged from one stem to one root, one ridge, one Kun, one earthquake and one Xun. "Three Yuan Jiu Yun" starts from the Yellow Emperor and uses sixty branches to deduce the calendar. Up to today, there are 78 flowers. One yuan is divided into three shipments, and one shipment is twenty years.