It was first catalogued by the Greek astronomer Ptolemy in the 2nd century. The constellation was named after Pegasus, the winged horse in Greek mythology.The constellation is known for the Great Square of Pegasus, a familiar asterism in the northern sky, as well as for a number of bright stars and deep sky objects, among them Messier 15 (NGC 7078, Cumulo de Pegaso), Stephan’s Quintet of galaxies, the Einstein Cross (a gravitationally lensed quasar), and the unbarred spiral galaxy NGC 7742
His story begins when Perseus, said to be the son of Zeus, is sent to kill Medusa by a man who wanted to marry his mother but did not …show more content…
She had fallen in love with him, and when he would not return her feelings, she told her husband that he had wronged her and therefore must pay with his life. As Proetus did not wish to break the bond between host and guest and suffer the wrath of Zeus, Proetus asked Bellerophon to deliver a letter to the King of Lycia. There the king welcomed him and entertained him for nine days before reading the letter, which contained the message that Bellerophon should be killed. Also not wanting to break the trust between guest and host, he sent Bellerophon to destroy the Chimera, who was said to be …show more content…
Its main geometrical figure is the "Great Square of Pegasus." To the observers on earth, the winged horse appears to be flying upside down. The vernal equinox, the sun's location when spring begins, is not far south of the square. To locate features of this area, it may be convienient to imagine that the square is the bowl of a large dipper, having as its handle the line formed by three bright stars of Andromeda (her head and length of body) and a fourth star in Perseus (his hand holding the Gorgon's head). The hind legs of Pegasus appear to make up the constellation of