Where is Sagittarius in the starry sky?

From Scorpio to the east, halfway across the Milky Way, south of the eagle and west of Capricorn, is Sagittarius. Sagittarius is one of the 12 zodiac signs, the southernmost sign of the zodiac, and the winter solstice is among them. The sun enters Sagittarius about 65438+February 65438+June every year; Five days later, on the winter solstice (65438+February 22nd or 2 1), it reached the southernmost point of the winter solstice. On this day, the days are shortest and the nights are longest in all parts of the northern hemisphere.

From summer to autumn, Sagittarius appears in the southern sky at midnight. Although it has no bright star like 1, it has two second-class stars and eight third-class stars. These stars are relatively concentrated, so they look brighter.

If you connect the six brighter stars of Sagittarius, it looks like a spoon. Because it is located in the Milky Way, it is called the "Galactic War". In ancient times, China called it the "Southern Fighting Six Stars", which was far from the Big Dipper.

Sagittarius is the zodiac sign in summer and autumn. It can be seen in Nantian at seven or eight o'clock in the evening of mid-late September and early June 10 every year. Sagittarius is the ninth and southernmost sign of the zodiac. Its position in the equatorial coordinate system is α: 17H4 1m ~ 20H45m, δ:- 12 ~-45. Most constellations are located in the Milky Way. To the east of Sagittarius is Capricorn, to the west is Scorpio and to the north is Eagle. Alpha star in Aquila is a bright star that we are very familiar with-Altair, also known as Tsukuji, with a brightness of 0.77 m and a distance of about 1.6 light years. Not far northwest of Lyra, there are 1 brighter stars across the Milky Way, almost at the zenith (as seen in Beijing). That is the alpha star of Lyra, the famous Vega, with a brightness of 003m, which is the fifth brightest star in the whole day, about 263 light years away from us. In the eastern Milky Way of Vega, next to Cygnus, Alpha Cygnus, Chinese name Tianjin IV, brightness 125m, about 1740 light years away. The equatorial coordinates of Sagittarius are α: 17H4 1m ~ 20H45m, δ:- 12 ~-45.

Sagittarius symbolizes the archery image of centaur monster in ancient Greek mythology. Legend has it that among those demigods whose upper body is human and lower body is horse, there is a centaur named Kai Long Xing, who is kind and intelligent by nature and knows many techniques such as music, medical skills and hunting. Later, he lived in seclusion in a cave in Piri Wenshan, teaching technology as a profession. All his disciples can dominate the world as long as they learn 1 skills. Hercules and Gemini are his disciples. Unfortunately, in the battle with some centaurs, Hercules shot Kay Long Xing with a poisonous arrow. God Zeus deplored Kay Long Xing's tragic death, so he promoted him to heaven and listed him as Sagittarius.

The center of the Milky Way is in the direction of Sagittarius, and there are some beautiful and bright star clouds here. One of them is called the horseshoe nebula, named after its horseshoe shape. It is also called the Omega Nebula because it is very similar to the Greek letter Ω. Seen through a telescope, it is a bright and huge gas cloud surrounded by many bright stars and clusters. Its shape inevitably reminds people of the graceful swan by the lake, so it is also called "Bai Niao Nebula".

In Greek mythology, Sagittarius is imagined as a supernatural image of a half-man, half-horse with a bow. Alpha is the knee of its right front leg, beta is the right front hoof, π is the horse's head, and λ, δ and ε are the bows. Sagittarius holds a bow (γ star) in his left hand, an arrow (τ star) in his right hand, and a sharp arrow (σ star) on his left shoulder. The brightest star in Sagittarius is ε star, which is called Gisusan in Chinese, and its brightness is about 18 1m, which is about 124 light years away from us. Followed by σ star, Chinese name Dou Su Si, the brightness is about 2 12m, which is nearly 3 years away from us. The part of the Milky Way in Sagittarius is very bright, which contains a lot of clusters, nebulae and stars, because the center of the Milky Way is in the direction of Sagittarius.

The gods in Greek mythology mostly represent tenderness, kindness and beauty; Instead, monsters represent evil, cruelty and ugliness. God is constructive, while monsters are good at destroying and confronting God and man. However, a few monsters are not so fierce and cruel, but make friends with human beings and benefit them. For example, among the centaurs mentioned above, there is a man named Kay Long Xing, who is gentle, kind, wise and upright; And versatile. It is said that he is a descendant of the god of time and the goddess of the sea. He is proficient in playing musical instruments, mastering medical knowledge and being good at bows, arrows, swords and spears. Besides, fist fight can't do sumo and horse racing. Besides, he can predict the future, and he is very prescient. Kay Long Xing lived in seclusion in Lippiwen Cave and became an apprentice. All his students can dominate the world as long as they learn one skill. For example, when we introduced constellations earlier, our friendly brothers Caster and Poldi Yukos learned equestrian and boxing from Kay Long Xing respectively. As a result, one of them became a world-recognized master of riding and racing, and the other became a rare and comparable fighting expert. Hercules, the Greek hero, Achilles, the warrior who won the world championship, Jason who won golden fleece, orpheus, the king of music, and Askro Pa, the imperial doctor, all came from the Kay Long Xing family. People call Kay Long Xing's disciples "Piran heroes", so Kay Long Xing is the originator of Greek heroes. Kay Long Xing is knowledgeable, noble and upright, and God and people love him, but he was shot with an arrow by disciple Hercules. Because that arrow once killed the monster Xu Dela, it was highly toxic, which made Kay Long Xing's injury incurable. Zeus, the God of Heaven, pitied Kay Long Xing's tragic death and gave him a place in heaven for future generations to admire and admire his achievements. This is Sagittarius.