@starryeyedaquarius: The story of Cassiopeia and her constellation comes from mythology. She was King Cepheus’s wife and famously boasted that she was more beautiful than 50 sea nymphs, known as the Nereids. They were angry because of Cassiopeia’s vanity and boastfulness and asked their sea god called Poseidon to make her pay for her comments. Poseidon was married to one of the nymphs and obliged. He sent a sea monster called Cetus after her. In the meantime, the king and his wife were told to sacrifice their daughter to the monster to be forgiven for Cassiopeia’s vanity. They reluctantly chained their daughter, Andromeda, to a rock – but she was saved by Perseus who went on to marry her. But the myth doesn’t end happily there. Perseus was challenged by one of Andromeda’s earlier lovers. Perseus won the battle by showing the head of Medusa who he had recently killed. This turned the challenger and his army into stone. But the king and queen were also subject to Medusa and turned to stone too. Poseidon then put the king and queen in the sky as neighbouring constellations. However, Cassiopeia spends half of the year upside down as a punishment for her comments and boastfulness.