What is the legend of Cygnus?

Cygnus, one of the northern constellations, stands on both sides of the Milky Way with Aquila and Lyra. The three main stars (alpha star) of these three constellations form a big triangle (summer triangle). So, what myths and legends are there about Cygnus? Let's look at the legend of constellations. Myth 1 In Greek mythology, Zeus was attracted by the beauty of Princess Leda, but he was afraid that the jealous queen Hera would be angry. If he appeared in his own image, it would be difficult to seduce this pure girl. So he came up with a trick to turn into a swan. One day, Leda was playing on an island when suddenly she saw a swan flying down from the white clouds. It is so beautiful and lovely that she is not afraid of people. Leda is allowed to touch and hug. Its feathers are white and its body is soft. Leda couldn't put it down, and her heart was full of intoxication and excitement. She unconsciously fell asleep with the swan. When she woke up, the swan reluctantly left her and spread its strong wings to fly to the sky. Leda felt unwell after returning to the palace and soon found herself pregnant. Wait until 10 month of pregnancy expires and give birth to twins. Caster and Polder uz later became Greek heroes of Gemini. Later, Leda obeyed her father's orders, married Tindarius, king of Sparta, gave birth to two daughters, one named Ruvniestra, and married Agamemnon, the supreme commander of the Greeks in the Trojan War. One is Helen, who married Agamemnon's younger brother Menelaus. Zeus was very happy when he returned to heaven. In order to commemorate this relationship, he left his swan in the sky and became a swan constellation. Myth 2 In Greek mythology, the youngest son of the sun god Phaeton forcibly drives his father's solar car, but he can't control it. As a result, he ran into a big disaster. The Emperor of Heaven (Zeus) killed him with lightning. A good friend of Phaeton's (Segnas) was so sad that he turned into a swan and searched everywhere for Phaeton's body over the Milky Way. Myth 3 Zeus turned himself into a swan in pursuit of Nemesis, the vengeance, and ordered Avilott Dieter, the goddess of love, to turn into an eagle to hunt him down, winning the sympathy of Nemesis. Later, after some twists and turns, I finally won the beauty's heart. To commemorate this event, Zeus lifted swans and eagles into the sky and turned them into Cygnus and Aquila. Myth 4 Zeus turned into a swan to seduce Leda, the queen of Sparta. Leda later laid an egg, and gave birth to Caster, Polly dukes/Polox and Helen in Gemini (it is said that Caster and Polo dukes are in one egg, and Helen and Klutenestra are in another egg, making two eggs altogether). Later, eggshells were placed in the temple of Sparta and hung on the roof with ribbons to avoid confusion. Caster and Clytaemestra are usually regarded as the flesh and blood of the Spartan emperor Tindarius, while Helen and Duke Bolu are the flesh and blood of Zeus. Myth 5 Zeus passed by the mouse king in the north of Athens, met Nemesis, the goddess of vengeance, and fell in love at first sight. In order to avoid Zeus, Nemesis became another animal to escape, first from the river, then from the land, and finally into a swan. After many chases, he still couldn't get rid of Zeus' pursuit. Finally, he was caught by the swan incarnated by Zeus and attacked him violently.