According to ancient Chinese astronomy, the ziwei star was surrounded by 28 other stars, meaning it was the heart of the sky.
根据中国古代天文学，紫微星被其它28个星星环绕，这意味着它是天空的中心。
2
Ancient China made unique contributions to many areas of science including astronomy, calendric system, geography, mathematics, agriculture, medicine and the humanities.
古代中国在天文历法、地学、数学、农学、医学和人文科学的许多领域，都作出过独特的贡献。
3
There are chiefly two research ways as: (1) Calculating the astronomical phenomena in the records of ancient literature by new method in astronomy, the collect years could be elected.