Cassiopeia

In Greek mythology, Cassiopeia (ancient Greek or Κασσιόπεια Κασσιέπεια) was the wife of King Cepheus of Ethiopia and his mother of Andromeda, which praised her beauty above that of the Nereids. This pride was the cause of all misfortunes, Poseidon sent a monster because the country that devastated their lands, and that Andromeda was to be sacrificed when it was saved by Perseus. [1] According to other sources Cassiopeia boasted outperform Nereids in beauty, and for this reason it is represented, when it was located between the stars, like her back.

PERSEUS

Perseus is a northern constellation representing Perseus, the mythological hero who beheaded Medusa. It is one of the 48 constellations of Ptolemy and one of the 88 modern constellations. It is the famous variable Algol (β Persei), and it is localized meteor shower of the Perseids.
The constellation Perseus is a warrior armed with the helmet of Hades, Athena's shield and sword and talares of Hermes, who carries in his hand the head of Medusa, whose eye corresponds to the star Algol. In the celestial scheme, Perseus is included in the set that encompasses Cepheus, Cassiopeia, Andromeda, Pegasus and Cetus.