Is the Big Dipper Ursa major? The relationship between the two?

I believe everyone is familiar with the Big Dipper. Do you know that the Big Dipper is Ursa major? Taoism calls the Big Dipper the Seven-Yuan Xie Hexing King and lives in the Seven Palaces of the Big Dipper, namely: Shutiangong Wolf-Greedy Star King, Tian Xuan Palace Giant Gate Star King, Tianji Palace Lucun Star King, Tianquan Palace Wenqu Star King, Yuheng Palace Lian Zhen Star King, Kaiyang Palace Five-Qu Star King and Yaoguang Palace Broken Star King. Learn more about the Big Dipper in Ursa!

Q: Is the Big Dipper Ursa major? No, the Big Dipper is part of Ursa Major. Graphically, the Big Dipper is located at the tail of Ursa Major.

The Big Dipper is a part of Ursa major. Graphically, the Big Dipper is located at the tail of Ursa Major. Six of these seven stars are secondary stars, and 1 is tertiary. Through the connection of the two stars in the mouth of the bucket, it extends about 5 times in the direction of the mouth of the bucket and finds the Polaris. "Star Recognition Song" has: "Star recognition begins with Beidou, and then begins from north to west." Beginners can look for other constellations in turn from the Big Dipper. The seven stars of Ursa Major are arranged in the shape of a spoon. The ancients attached great importance to Beidou because it can be used to identify the direction and set the season.

Shu Tian, Tian Xuan, Tianji and Tian Quan are the four stars that make up the Big Dipper, and the three stars with handles are Yuheng, Kaiyang and Yaoguang respectively. The star in the center of the ladle handle is called Kaiyang, and there is a fourth-order companion star called auxiliary star at the distance of 1 1. Kaiyang and the auxiliary star form an optical binary star, which can be recognized by naked eyes. Kaiyang and auxiliary stars are also the only physical binary stars visible to the naked eye all day. The position of the Big Dipper in the night sky is different in different seasons.

Therefore, ancient China people determined the four seasons according to its position change. "Shi Gan Jing Jing": "Beidou is called the Seven Houses, the Minister of the Emperor, and the Emperor Car." The emperor sat on the Big Dipper and inspected the four directions, and it was cold and hot at four o'clock. The ancient book "_ Guanzi" records: "Fighting refers to the East, which is the spring on earth; Fighting in the south and fighting in the north, the world is summer; Fighting against the west means that the world is autumn; The northern war is the winter in the world. " In ancient times, Polaris was regarded as a symbol of God, and Beidou was the imperial chariot that God drove when he traveled around the world. The year began in spring, when Beidou was in the east, so God began to patrol from the east, so Yi Zhuan: "The Emperor was shocked" and divination was in the east.

Among the Big Dipper, "Yuheng" is the brightest, and its brightness is almost close to the first-class star. "Tianquan" is the blackest and is a third-class star. The other five are all second-class stars. There is a small companion star named Fu near Kaiyang, which has always attracted people's attention with its beautiful and clear appearance. It is said that ancient Arabs used it as a "test star" to test soldiers' eyesight when recruiting soldiers.

The Big Dipper always moves slowly in the sky. Five of the stars move in one direction at roughly the same speed, while Shu Tianhe and Yao Guang move in the opposite direction. Therefore, in the long cosmic changes, the shape of the Big Dipper will change greatly. After 654.38+ million years, we will not see this handle shape.

The Big Dipper is also called "Beidou" for short. Not far from the north celestial pole, seven bright stars are arranged in a barrel shape (see photo). All six stars are second-class except delta, which is a third-class star. Polaris can be found by connecting the first two stars of the Big Dipper and extending it to the mouth of the Big Dipper for about five times, which is usually used as a sign to indicate the direction and identify the constellation. In addition, according to the bucket handle curve of the Big Dipper, after drawing an arc, you will meet arcturus, which is one of the 2 1 bright stars, that is, the alpha star of the constellation Capricorn.

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