At night, the sky bright stars in the north is not much, therefore, between the stars is made up of seven associated a brilliant star of the wine bucket shape is particularly conspicuous, this is the famous big dipper.The seven star is Ursa major.A day in the pivot, Los Angeles to me, the big day, the day power, jade value, mizar and light.Days pivot and spiral is also called Pointers, because in the two stars attachment 5 times far can find the north star.In mizar star left eyesight good people can see a small star, named in the auxiliary.

Since the primitive society matriarchal period in our country, is the agricultural economy of the mainstream society.Our country the foundation of all problems and causes are related to agricultural production, therefore distinguishes the season, farming is a top priority of the society.A very early age, our country north of the Yellow River basin area is big dipper according to dusk bucket handle different pointing to determine the time.Ancient books are available in the "bucket handle refers to the east, the world is the spring;The bucket handle refers to the south, the world all summer.The bucket handle refers to the west, the world is the autumn;Bucket handle refers to the north, the east."

In addition to four, set the throttle, big dipper stars are by reference to the main field.Famous historian sima qian in the western han dynasty written by GuanShu shi-ji day, compares the beidou sent aboard a car "central operation, in the suburbs, Yin and Yang, built four, all five line, move section, set the age."It serves to show the degree to which the attention of the beidou people at that time.Shandong Wu Liang temple there is a piece of this situation are described in the han dynasty stone carvings.Beidou bucket chief four stars form a cloud car, the car of emperors are beckoned to a group to come to visit the secretary.Around while, offerings and birds, one of the new millennium in the pleasure of his manner.Even more interesting is a fairy with wings, holding a small star danced volley, the small star is the companion - auxiliary mizar.Legend has it the ancient Arab when recruitment is to use the small star test candidates eyesight.

Chinese folklore beidou is a longevity, dominate the world life of day.He often turned into an old man, and the people to the game.Star of the romance of The Three Kingdoms of home tube for advice from a young man to the big dipper in the mountains to find, please the birthday girl will he insisted from 19 to 99 years old.Beidou for inadvertently eat the young man's many wine meat, he also agreed to a request.

In our country also circulated at and beidou about another story.Line is tantric buddhist monk in the tang dynasty in China, the name Zhang Sui.This person well-read, by interacting with powerful wu think twice, hiding in the mountains, cut a monk.Successively in mount pole, are green buddhist classics and astronomy, mathematics learning.After wu zetian abdication, Li Tang dynasty has repeatedly called for him to have been his refusal.Until kai yuan five years (AD 717) xuan zong sent his uncle, LiBuLang Li Qia brought to save books in jingzhou, would he forced into his palace.A line from "kaiyuan large yan after" fifty-two, into "tang book. Law through the volunteers".He also participated in the ecliptic YouYi manufacturing, presided over the massive national astronomical geodesy, is a great figure in the history of our country.