Ｒｅａｃｈ　ｆｏｒ　ｔｈｅ　Ｓｔａｒｓ

ＴＡＮＧ　ＹＵＡＮＫＡＩ

Astronomy was close to the heart of ancient China.By 2300 B.C.,ancient Chinese as-trologers already had sophisticated observatory buildings,which they used for forecasting the health and success of future emperors.