The functions of the Big Dipper: 1. The Big Dipper can be used to point out the direction; 2. The Big Dipper is used for deduction in Chinese Feng Shui culture.
The Big Dipper is recorded in ancient Chinese books, and celestial phenomena are generally observed through it. In addition, what does the Big Dipper do? Let me give you a detailed introduction below. Details 01
The Big Dipper can be used to point the way: all the stars in the sky can point the way. Observe them for a period of time. During this period, the mid-vertical line of their motion trajectories must point to the South Celestial Pole or the North Celestial Body. Through such characteristics, it can be used to point the way when you are lost. 02
The Big Dipper is used to deduce in Chinese Feng Shui culture: Next to the Kaiyang Star and the Shaking Light Star, there are two other small stars. Because their light is weak, they are not noticeable. The one on the left It is called Zuofu, and the one on the right is called Youbi. Ancient Kanyu experts evolved the Kanyu Nine Stars based on the Big Dipper and the Fubi Star. The Liqi school uses the nine stars to represent good and bad directions, and adds numbers and colors to the nine stars to represent changes in fortune. 03
Beidou is composed of seven stars: Tianshu, Tianxuan, Tianji, Tianquan, Yuheng, Kaiyang and Yaoguang. The ancient Han people connected these seven stars and imagined them to be in the shape of an ancient bucket for ladling wine. 04
The Big Dipper appears in different directions in the sky in different seasons and at different times of the night, so the ancients determined the season based on the direction the handle pointed at dusk: if the handle points east, spring will come all over the world. ; The handle of the bucket points to the west, and it is summer all over the world; the handle of the bucket points to the west, and it is autumn all over the world; the handle of the bucket points to the north, and it is winter all over the world. 05
Starting from the top of the dipper body and ending at the end of the handle, the seven stars of the Big Dipper are named α, β, γ, δ, ε, ζ, and η in order. In ancient times, Han astronomers called them respectively Authors: Tianshu, Tianxuan, Tianji, Tianquan, Yuheng, Kaiyang, Yaoguang. Extend a straight line from "Tianxuan" through "Tianshu", about five times longer, and you can see a star that is almost as bright as the Big Dipper. This is the Polaris.