What is the constellation of "Princess incarnate"?

Andromeda is one of the northern constellations. Located between Perseus and Pegasus, south of Cassiopeia, it is a constellation that stands out in the autumn and occupies a vast space. We can first find a big and striking quadrangle composed of four bright stars in the sky, which is called "Pegasus Fairy Quadrangle". The three stars in the quadrangle are the main stars of Pegasus, and the bright star in the upper left corner of the quadrangle is Andromeda, the head of the fairy. Andromeda can see three stars with almost the same brightness from the northeast of Areopatra II, and they are arranged in a row with almost the same distance from Areopatra II. Among them, the closest is the fairy's chest, the farther is called "Milac", which is equivalent to the fairy's waist, and the farthest is called "General Yi Tian", which is a lock foot of the fairy. These four stars constitute the main body of Andromeda. Andromeda has many beautiful celestial bodies. For example, General Tian, at first glance, is a binary star, consisting of a brighter yellow star and a darker yellow star. The color of the darker star in this binary star often changes from yellow, gold to blue. This dark star can be seen with a large telescope, and it is a binary star composed of two stars that are very close together, so General Tian is actually a triad star. The famous Andromeda Nebula is located at the waist of the fairy, and a blue-and-white cloud spot can be faintly seen by the naked eye. It is a galaxy like the Milky Way. In addition, there is the famous Andromeda meteor group that appears in mid-June 165438+ 10 every year.

Andromeda

It is said that in ancient Ethiopia, King Capes and Queen Casio Boya had a beautiful princess named Lao Moda. The queen often boasts that her daughter is more beautiful than Poseidon's. This sentence angered the sea king, so the sea king sent whales to the place ruled by the king, making waves and harming the people. Later, the king was inspired by God. In order to save the people, he could only chain the princess to the rocks by the sea to worship the whale monster. At this critical moment, the hero Poerxiusi rode by on a flying horse, saved the princess and married her. Later, the princess was ascended to heaven by God and became Andromeda.

Learning point

Andromeda meteor group

Andromeda meteor group is one of the most famous meteor groups. It appears in the middle of June every year 165438+ 10, with the most days from 20th to 23rd, and its radiation point is near Andromeda γ star. This meteor group appeared after the head of Comet Bila split. 1872165438+1on the evening of October 27th, that is, the night when the earth passed the intersection of its orbit and Comet Bila, a rare meteor shower appeared for five or six hours continuously, with the total number of meteors exceeding 65438+million. Astronomically, it is called Andromeda. Andromeda meteoroids are formed by meteoroids from Andromeda meteor group breaking into the earth's atmosphere.