![]() Four of them have an apparent magnitude less than 3, and four-plus an apparent magnitude between 3 and 4. The stars of Cassiopeia are relatively bright. Also, Andromeda and Perseus were transferred to the sky as a constellation. It was then that the hero Perseus appeared, who, after having killed Medusa, also defeated Ceto and freed Andromeda.Īlthough Ethiopia was saved from the destruction of the monster Ceto, Poseidon believed that Cassiopeia deserved punishment and, for this, he placed her in heaven linked to his throne. Cepheus and Cassiopeia asked the oracle for help, and it indicated that the only way to save the kingdom was to sacrifice his daughter Andromeda to appease the monster Ceto.Ĭepheus and Cassiopeia carried out the oracle’s orders, and Andromeda was tied to a rock and offered to Ceto. As revenge, Poseidon sent the monster Ceto to destroy the kingdom of Cepheus and Cassiopeia. The nymphs wanted to punish this insolence and asked the god Poseidon for help. According to Greek myth, Queen Cassiopeia boasted that her daughter Andromeda was more beautiful than the Nereids, the nymphs of the sea. Origin and mythology of the constellation CassiopeiaĬassiopeia is a character from Greek mythology, wife of King Cepheus and queen of Ethiopia. The constellation is known to contain two Messier objects and a significant number of open clusters. Its adjoining constellations are the Giraffe (Camelopardalis), Cepheus (Cepheus), the Lizard (Lacerta), Andromeda (Andromeda), and Perseus (Perseus). Due to its position in the sky, it is only visible from latitudes above 20 degrees south. It is located precisely in the first quadrant of the northern hemisphere. Of the 88 modern constellations, only 24 are larger than Cassiopeia. The constellation Cassiopeia occupies an area on the celestial sphere of 598 square degrees and is, therefore, a relatively large constellation. Ptolemy published the constellations known at that time in an astronomical treatise entitled Almagest. ![]() This constellation is part of the 48 constellations cataloged by the Greek astronomer Ptolemy in the second century after Christ. The constellation Cassiopeia is a constellation in the northern hemisphere easily recognizable by its W shape. ![]()
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