How did the Cassiopeia constellation get its name?


The Cassiopeia constellation is one of the most recognizable in the night sky, and it is often referred to as the “W” constellation due to its distinct shape. But how did it get its name? Let’s take a closer look at the mythology behind the Cassiopeia constellation and its place in history.

The Story of Cassiopeia

According to Greek mythology, Cassiopeia was the queen of Ethiopia and the wife of King Cepheus. She was known for her great beauty and was considered to be one of the most beautiful women in the world. However, her vanity and arrogance led her to boast that she and her daughter Andromeda were more beautiful than the sea nymphs known as the Nereids.

This angered the sea god Poseidon, who sent a sea monster to terrorize the kingdom of Ethiopia. In order to appease Poseidon and save her people, Cassiopeia was forced to sacrifice her daughter Andromeda to the monster. However, Andromeda was eventually rescued by the hero Perseus, who turned the monster to stone with the head of Medusa.

The Naming of the Cassiopeia Constellation

As punishment for her arrogance, Cassiopeia was placed in the night sky as a constellation. According to legend, Cassiopeia was tied to a throne and placed upside down in the sky so that she could hang for eternity, as a reminder of her arrogance and vanity.

The Cassiopeia constellation is visible in the northern hemisphere during the fall and winter months, and it is known for its distinctive “W” shape. The constellation has been recognized since ancient times. It was first cataloged by the Greek astronomer Ptolemy in the 2nd century AD.


The Cassiopeia constellation has a rich mythology and history that dates back to ancient times. According to Greek mythology, the constellation was named after the vain and arrogant queen Cassiopeia. She was punished by being placed in the sky as a reminder of her vanity. Today, the Cassiopeia constellation remains one of the most recognizable in the night sky, and it continues to fascinate stargazers and astronomers alike.