What is the name of each star in the Big Dipper? (It is best to start with the spoon handle)

Beidou consists of Shu Tian, Tian Xuan, Tianji, Tianquan, Yuheng, Kaiyang and Yaoguang. The ancients connected these seven stars and imagined them as barrels of wine in ancient times. Shu Tian, Tian Xuan, Tian Ji and Tianquan are composed of Dou Shen and Gu Yue Kui. Yuheng, Kaiyang and Yaoguang are composed of bucket handle, which was called Piao in ancient times. The Big Dipper appears in different directions in the sky at different seasons and different times at night, so the ancients decided the seasons according to the direction pointed by bucket handle at the beginning of fainting: bucket handle points to the east, and the world is spring; Guide to barrel handle, it's summer in the world; Bucket handle refers to the west, and the world is autumn; The barrel handle refers to the north, and it is winter all over the world. Introduction to Chinese Pinyin: běI dǒu qρxρng English names: wain, dipper, Charles's Wain Beidou I: The Big Dipper (20 pictures) constellation in the night sky of Shu Tian: Ursa Major α (Shu Tian, Wolf Star) Western name: dubhe Bayer letter: Ursa Major α apparent star, etc.:1.77. (Era J2000.0): Right ascension:1kloc-0/h03m43.70s declination:+6145' 03.2 "Height: 5412' 33" Azimuth: 048 49. Volume1transit: 04h33m11s from the giant gate star) West name: Merak Bayer letter: beta magnitude of Ursa Major: position 2.40 (year J2000.0): Right ascension:1/h0. M 50.49° declination:+56 22' 56.6 "Height: 52 25' 31"Azimuth: 05719'13 "U2000: Vol 65440 Lu Cunxing) Western name: phecda. Right ascension:: 1 1h 53m 49.83s declination: +534 1' 4 1 "Height: 44 38' 39" Azimuth: 05515' 46 " Vol 1transit: 05h23m09s Distance: 83.7 1.4 light-year brightness: 59.0 2.0 times the sun brightness Beidou IV: Tian Quan constellation: Ursa Major δ (Tian Quan, Wenquxing) Western name: Megrez Bayer letter: Ursa Major δ magnitude: 3.40 position (era J 20). 2h15m 25.57 declination: +57 Lian Zhenxing) West Name: Alistair Letter: epsilon Urae Majoris Location (J2000.0) Right ascension: 12h 54m 0 1 .76 south latitude:+55 57' 35.6 "height: 39 06' 28" azimuth: 045 49' 31"u2000: chart 48, Volume1transit: 06h23m16548 Right ascension: 13h 23m 55.55s declination:+54 55' 31.4 "Height: 3517' 26. 00 "U2000: chart 48, volume 1 distance: 78.2 1. 1 light-year brightness: 60.2 65444 Vol 1 distance: 8 1. 15 light-year spectrum. The ancient army used this pair of binary stars to test soldiers' eyesight, which was used by both Chinese and foreign armies. The auxiliary star Ursa Major 80 is the companion star of Ursa Major ζ (Kaiyang), also known as Zuo Fu. Many people use this auxiliary star to measure their eyesight. If we can distinguish this auxiliary star, our vision will reach 1.5. "Historical Records Tianguan Book": "Auxiliary stars are bright and close, and auxiliary ministers are strong; Weak. " "Jin Shu Tian Wenzhi": "The auxiliary star is rich in Kaiyang, so the auxiliary war is successful, and so is the prime minister. Seven political stars are bright, their country is prosperous, and they are auxiliary stars, so the minister is strong. " Song He? "Chun Zhu's story: the stone color is sky blue, the thin pool contains seven stars, arranged like a bucket, and the auxiliary stars are in the clouds. Because the purpose is to fight for the stars. " He Jingming's "Blame" in the Ming Dynasty: "It also made Beidou shake the discipline, and it was assisted by the stars." Beidou-7: Swing constellation: η Ursa major (swaying light, broken star) West name: Arka ID Beierxin: Eta magnitude of Ursa major: 1.86 position (epoch J2000.0). : Right ascension: 13h 47m 32.44s declination: +49 18' 48. 1 "Height: 28 42' 54" Azimuth: 044 29' 36 "U2000: Chart 49, Volume/kloc-0.