How to find Altair and Vega?

Near the top of the head, there are three bright stars in the middle and on both sides of the Milky Way. The brightest is blue and white. She is in the northwest of the galaxy. This is Vega. There are four dark stars below Vega, forming a small parallelogram. They are beautiful clouds and rainbow shuttles woven by Vega in myths and legends. Another bright star is in the southeast of Vega, which is the southeast edge of the Milky Way. He is Altair (also known as Hegu II). Cowherd is a bright yellow star, and the two small stars on both sides of him are called shoulder pole stars. According to legend, Cowherd is pregnant with a pair of children.

The weaver girl in myths and legends is the daughter of the Emperor of Heaven. She fell in love with Cowherd privately and gave birth to a pair of children. But the emperor forced the Weaver Girl to die, and only allowed the Weaver Girl to meet the Cowherd and their children on the seventh day of the seventh lunar month every year. At this time, the magpies in the sky will build colorful bridges for them. On Valentine's Day in China, also known as Begging for Clevership Festival, many young girls and women have been looking up at the night sky and begging the Weaver Girl to give them ingenuity and happiness.

Qin Shaoyou, a poet in the Song Dynasty, wrote a poem "Queqiao Fairy" for Qixi Festival: "The thin clouds are clever, the flying stars spread grievances, and the silver and the Chinese are far from dark. It would be better to meet each other, but there are countless people in the world. Tender as water, like a dream, you can go home from the bridge! If you are in love for a long time, it will be sooner or later. "

Wang Sichao said that Qixi, the Valentine's Day in China, not only has a long history, but also has profound implications, no less than Valentine's Day in the West. To this end, he suggested that Valentine's Day in China or Valentine's Day in China be marked on the calendar so that Chinese people all over the world can celebrate it.

Wang Sichao introduced that in legend, why should the seventh day of the seventh lunar month be the day when the cowherd and the weaver girl meet? This is because the ancients thought that "seven" was an auspicious number, which meant perfection. Moreover, on the night of July 7, when the moon approaches the Milky Way, if you observe it with an astronomical telescope, you will see dense clusters in the Milky Way. The afterglow of half a moon sprinkled on the Milky Way, becoming an imaginary "magpie bridge".