The constellation position of Vega

Vega is a star located in the east of the Milky Way, opposite Altair across the Milky Way, belonging to Lyra. It is about 27 light-years away from the earth and is blue and white. Vega is the brightest star in Lyra, with a surface temperature as high as10000 C.

Vega's scientific name is Lyra-α, which is one of the most famous bright stars in the summer night sky. Usually, people call it Vega In the west, it is called "Queen of Summer Night".

More than 65438+300,000 years ago, Vega was once the North Star. Due to the precession of the earth's axis, the current Polaris is Alpha Ursa minor. But in 6.5438+0.2 million years, Vega will return to the prominent position of Polaris.

Chinese culture

There is a Tanabata story in China mythology, which tells that Cowherd (Hegu II) and his two children (Hegu I and Hegu III) are separated from their mother, Weaver I, and two four-star Weaver II and III near it form a regular triangle, which is collectively called Weaver Samsung by the Milky Way.

But magpies build a bridge on the Milky Way every year on the seventh day of the seventh lunar month, so that cowherd and weaver girl can meet each other briefly. A stone statue of Han Dynasty was unearthed in Nanyang, Henan Province, with a white tiger as the center, Vega carved in front of the white tiger and Altair carved behind it. The image of the Altair is that a farmer leads a cow, and the three stars on the cow are the three stars of the river drum.

Weaver, sitting in a high bun, surrounded by four stars. It is also based on this legend that Tanabata called the Weaver Girl "Weaver Girl".