Orion is the constellation which is often called as a hunter. It is a prominent constellation which is located on the celestial equator and is visible all over the world. It is largest and most conspicuous constellation. The Hunter name derives from Greek mythology, in which Orion was a gigantic hunter of primordial times. Some of these myths relate to the constellation. One myth says that Orion was killed by a giant scorpion and the gods raised him and the Scorpion to the skies, as Scorpio/Scorpius.