Sihaiwang: the seventh day of the seventh lunar month is the most romantic Chinese traditional festival. It's said that on the seventh day of July, it's the day when Cowherd and Weaver Girl meet. On this day, lovers will meet to express their love. Do you know who Cowherd and weaver girl are?
What day is the Chinese Valentine's day in 2018
Valentine's day on the seventh day of the seventh lunar month is Friday, August 17, 2018
Qixi Qiqiao, the festival originated in the Han Dynasty. In Gehong's Xijing miscellany in the Eastern Jin Dynasty, there is a record that the colorful women of the Han Dynasty often wear seven hole needles on the seventh day of July in the open-ended building, which is the earliest record about Qiqiao seen in the ancient literature. Later, in Tang and Song poetry, women's Qiqiao was also mentioned repeatedly. Wang Jianyou of Tang Dynasty said that "the stars in the dim sky are shining with pearls, and the palace goddess on the seventh night is busy with Qiqiao". According to Kaiyuan Tianbao's bequeath, Emperor Taizong and his concubines often have a banquet in the Qing Palace on the seventh day of the seventh lunar month. The ladies beg for their own skills. This custom has been enduring in the folk society and has continued from generation to generation.
What is the holiness of Cowherd and Weaver Girl
Cowherd and Vega are folk names. In fact, in astronomy, the Chinese name of cowherd star is Hegu 2, while Vega star is Vega 1, which is the bright star of Aquila and Lyra respectively. They are two stars like the sun, that is to say, they can glow and heat themselves.
Altair, the brightest star in the constellation Aquila, is clearly visible to the naked eye in the northern hemisphere's night sky. Its surface temperature is as high as 8000 ℃, and its radiation energy is 10.5 times that of the sun. The rotation speed of Altair is up to 1.027 million kilometers per hour, about 60 times that of the sun. Altair has a radius of 1.68 times that of the sun and a weight of 1.6 times that of the sun. The simple cowherd turned out to be a fat man.
Vega is not only the brightest star in Lyra, but also ranked fifth in the whole night sky, seven places higher than cowherd. Its diameter is 3.2 times that of the sun, its volume is 33 times that of the sun, and its weight is 2.6 times that of the sun. Even fatter than Niulang! Niulang is 154 trillion kilometers away from us, 1 million times farther than the sun; Zhinu is 250 trillion kilometers away from us, 1.7 million times farther than the sun. So although Zhinv is not only bigger and brighter than Niulang, but also far away, we look like two stars are almost as bright.