Origin
1000 B.C. has put forward 30 constellation. The ancient Greek astronomers of Babylon sign were added and the development, the preparation of a constellation of ancient greece. In second Century, the ancient Greek astronomer Ptolemy integrated the astronomical achievements, has compiled 48 constellation. And use the lines of appearance in the constellation main bright star connect, imagine the image of animal or person, with fairy tales to give them a proper name, which is the origin of the name of the constellation. Greek mythology in the 48 constellation in the northern sky mostly and the equator. In order to facilitate the study of the stars, divided into a number of regions, the region called the constellation. The Western Zodiac originated from on of the four ancient civilizations of ancient Babylon. Reportedly, now called the 12 constellations of the zodiac, a total of more than 20 constellation name, in about 5000 ago Mesopotamia already was born. Thereafter, the ancient people of Babylon continue to be the sky is divided into many areas, and puts forward a new constellation. Around