地理科学

地理科学 ›› 2005, Vol. 25 ›› Issue (6): 748-753.doi: 10.13249/j.cnki.sgs.2005.06.748

• 论文 • 上一篇    下一篇

记载郑和下西洋使用牵星术的海图

刘南威1, 李竞2, 李启斌2   

  1. 1. 华南师范大学地理科学学院, 广东 广州 510631;
    2. 北京天文台, 北京 100101
  • 收稿日期:2005-04-13 修回日期:2005-08-16 出版日期:2005-11-20 发布日期:2005-11-20

A Nautical Chart Recording the Navigation Astronomy Technology Used by Zheng He's Travelling

LIU Nan-Wei1, LI Jing2, LI Qi-Bin2   

  1. 1. Callege of Geographical Sciences, South China Normal University, Guangzhou Guangdong 510631;
    2. Beijing Observatory, Beijing 100101
  • Received:2005-04-13 Revised:2005-08-16 Online:2005-11-20 Published:2005-11-20

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4

摘要： 从航海天文角度研究了《郑和航海图》的价值。《郑和航海图》是中国古代航海经验的结晶,它既是郑和等人航海实践的记录,又是宋、元时代牵星航海经验的总结。文章推算出牵星术"一指"相当于天体高度的1.9°。同时考证出以"指"为量度单位起源于战国时期,证明中国的天文导航技术由来已久,且独具特色,自成体系。

Abstract: This paper studies the value of Zheng He's Charts from the angle of navigation astronomy. Zheng He's Charts were the crystallization of the ancient Chinese navigation. They were both the records of the experiences accumulated by Zheng He and his forerunners in their seafaring activities and the summary of the astronomical navigation during the Song and Yuan dynasties.The calculation shows that the unit of measurement "Zhi" is equivalent to 1.9?. Further inference is drawn from the ancient literature that this measure in navigation astronomy originated as early as the Periods of the Warring States.

中图分类号: 

  • P258.3