This animal was elect in the antiquity which symbol of the goddess Era. The monster Argon,
an endowedwith one hundred eyes, had been placed from Era to guard of beautiful Io, one of
the lovers of Zeus, but the father of Gods asked to Ermes to kill the overseer. In order
to rewards unlucky keeper, the wife of Zeus made to live again the eyes of the creature
placing them on the feathers of a peacock. Bayer putted the episode transferring the animal
in sky under constellation shape.