Sanyuan detailed data daquan

The three walls, namely, the Forbidden Zone, the Taishang Temple Zone and the Tianshi City Zone, are collectively referred to as the three walls on the ecliptic for twenty-eight nights.

Compared with the constellations of modern astronomy, the star officials have a smaller scope and a larger number, so ancient astronomers in China divided the star officials into larger areas such as three walls and twenty-eight palaces. In ancient China, in order to know the stars and observe the astronomical phenomena, the stars in the sky were divided into several groups, and each group had a name. Such a group of stars are called star officials. Each star officer contains a number of stars ranging from one to dozens, and the scope of the sky area is also different. Among the numerous star officials, 365,438+0 occupies a very important position, that is, three walls and twenty-eight accommodations. In the Tang Dynasty, Sanyuan and Twenty-eight Nights developed into an ancient star division system in China, similar to the constellations in modern astronomy.

Basic introduction Chinese name: Sanyuan Pinyin: yuán Features: One of the stars in the starry sky Source: Ancient Pinyin in The Book of Jin Tian Wen Zhi: Yan Brief Introduction, Ziweiyuan, Taiweiyuan and Tianshiyuan In Historical Records, Sanyuan Tong's brief introduction includes Taiweiyuan on the upper wall, Ziweiyuan on the middle wall and Tianshiyuan on the lower wall. As star officials, the names of Zi Weiyuan and Tian Shiyuan first appeared in the Star Classic of Kaiyuan, and the name of Tai Weiyuan did not appear until Xuanxiang Poetry in the early Tang Dynasty. Each wall is a relatively large sky area, which contains several (small) stars (or constellations). According to the records in Qing Hui Dian, the division of liver, stone and Wu (liver, stone and Wu) is different. There are stars in the east and west on every wall, which are arranged in a circle around and shaped like a wall, so it is called "wall". Star officials equivalent to these three walls can also be seen in Historical Records of Heaven, but their names are different from asterisks. It can be seen that the formation of ternary once had a process of evolution and adjustment. In Song of Heaven, Sanyuan becomes the main body of three celestial bodies, and these celestial bodies are also named after Sanyuan. Purple element includes the sky area near the north celestial pole, which is roughly equivalent to the area of arch star; Taiwei Courtyard contains some constellations such as Maiden, Houfa and Lion. Tianshi source includes snake man, five immortals, giant snake, skyhawk and other constellations. Ziweiyuan Ziweiyuan is the middle wall of three yuan, living in the center of the northern sky, so it is also called Zhonggong, or Ziweiyong. Wei Zi Palace means Imperial Palace, and most stars are named after official names. There are 15 stars in the northeast of Beidou, which are arranged east and west, with Polaris as the center, forming a screen fan shape. Dong Fan's eight stars are called Zuo Shu, Shangzai, Shaozai, Shangbi, Shaobi, Shang Wei, Shao Wei and Shaocheng (namely ι, θ, η, ζ, ν, Draco 73, Cepheus π and Cassiopeia 23). The names of Xifan Seven Stars and Ziwei Garden were first seen in Shi Xing Jing compiled by Kaiyuan. It is located in the center of the north, with 15 stars in the east and 15 stars in the west. The two bows were joined together and surrounded by a wall. According to the observation records of Ziweiyuan during the Song You period, * * * has 37 constellations with 2 additional stars, 163 positive stars and 18 1 additional stars. Its sky area is roughly equivalent to the international constellations of Bear, Bear, Dragon, Hound, Mu Fu, Unbounded Constellation, Wang Xianxing, Hou Xian Constellation, Yingxian Constellation and Lubao Constellation. Taiweiyuan in the star field near Ziweiyuan is the upper wall of Sanyuan, which is located in the lower northeast of Ziweiyuan. There are 10 stars in the south of Beidou, in the north of Yachongzhou and Yisu, which are fan-shaped and centered on the Five Emperors. Dong Fan 4 stars, starting from the south, are called East Upper Phase, East Secondary Phase, East General Star and East General Star (namely Virgo γ, δ, ε and backward 42); Xifan 4 stars, from south to bottom, are called West Admiral, West Admiral, West Sub-phase and West Upper Phase (namely Leo σ, ι, θ, δ); South Francisco 2 stars, the east is called left law enforcement (that is, Virgo η), and the west is called right law enforcement (that is, Virgo β). The name of Taiweiyuan first appeared in Xuanxiang poems in the early Tang Dynasty. It covers an area of 63 degrees in the sky and is centered on the emperor. * * * contains 20 constellations, 78 main stars and 100 additional stars. It contains a part of constellations such as girls, latecomers and lions. Too young is * * *, and the star name is also named after the official name. For example, the left law enforcer is Ting Wei, and the right law enforcer is an ancient scholar. Shi Tian City Wall Shi Tian City Wall is the lower wall of Sanyi, which is located in the southeast direction under Wei Zi City Wall. In the northeast of Su Fang and Shinjuku, there are 22 stars, centering on the throne, forming a screen-like fan. 1 1 The stars are Song, Nanhai, Yan, Donghai, Xu, wuyue, Qi, Zhongshan, Jiuhe, Zhao and Wei (namely Ophiuchus η, Ophiuchus ξ, Ophiuchus ν, Ophiuchus η, θ, Eagle ζ, Wu) from the south. Xifan 1 1 star. From the south, it is called Han, Chu, Liang, Ba, Shu, Qin, Zhou, Zheng, Jin, Hejian and He Zhong (namely Ophiuchus ζ, ε, δ, Ophiuchus ε, α, δ, β, γ, Wuxian χ, γ, β). Tianshiyuan occupies about 57 degrees in the sky, which is roughly equivalent to a part of the international cosmic constellations such as Five Immortals, Serpent and Snake, including 19 stars (constellation), 87 positive stars and 173 additional stars. It takes the throne as the center and becomes a screen fan. Shi Tian is Bazaar, and the Chinese cloud says, "The emperor attracts princes to the city for luck." Therefore, the names of stars are often used to name the market names of goods and instruments and commercial content. For example, Tian Wenzhi, Book of Jin, said: The emperor's seat stands for Yin and Yang, welcoming guests and bucket stands for quantity, welcoming guests is used to measure solids, and bucket is used to measure liquids. The list of "goods representing Baoyu" is Baoyu's exclusive market, and the garage is the "main cargo area". There is no clear conclusion about the founding time of Sanyuan in historical records. According to ancient records, Zi Weiyuan and Tian Shiyuan, as star officials, first appeared in the book Kaiyuan Zhan Jing, which compiled the Star Classic of the Stone God, and the name of Tai Weiyuan first appeared in astronomical poems in the early Tang Dynasty. However, the official name of the star equivalent to ternary star has been included in the record of the historian "Official Book". The stars in the east and west of Tianshi Garden are all named after the country names of the Warring States Period, which is also a proof of the founding of Sanyuan.