授时历

古代朝鲜学者的《授时历》研究

The study of Shou Shi Li by ancient Korean scholars

接下来的364年用的都是《授时历》。

It would be used for the next 364 years .

为什么《授时历》受外来的影响很小？

Why Was There So Little Foreign Influence on the Season-Granting System ?

郭守敬根据观侧和研究，制定了《授时历》。

On the basis of his observation and research , Guo Shoujing made the u Imperial Calendar .

在忽必烈的天文台工作，他编制了《授时历》，计算出每年有365.2425天。

There he formulated the Shoushi calendar and calculated the year to be 365 . 2425 days .

《授时历》编制不久即传播到日本、朝鲜，并被采用。

Soon after its compilation ， the Shoushi Calendar was Spread to and adopted by Japan and Korea .

《授时历》之所以沿用这么长时间，和它的计算精度非常高有很大关系。

The reason why the calendar was used for such a long time has much to do with its accuracy in calculation .

科学成就与郭守敬的《授时历》：元朝科学技术也有所发展。

Scientific achievements and uThe Official Calendar ^ by Guo Shoujing ： It had its development in science and technology in the Yuan Dynasty .

作为中国历史上一部先进的、精确的历法，《授时历》在世界天文学史上也占有突出的位置。

As an advanced and accurate calendar in the history of China ， the Shoushi Calendar also occupies a distinct posi-tion in the history of world astronomy .

另外，《授时历》废除了用复杂分数表示天文资料的办法，使用小数制，不仅大大减少了计算量，也保证了计算精度。

In addition ， instead of the mathematical method of recording astronomical documents via complicated fractions ， the calendar employed decimal fractions ， which largely reduced calculation workload and guaranteed accuracy .

近年来日本和欧美等国的天文学家对《授时历》产生了新的兴趣，进行了广泛而深入的研究。

In recent years ， astronomers from Japan ， European and North American countries are again showing interests in ahe Shoushi Calendar ， and some broad and in-depth researches have been made .

《授时历》在计算方法上也有创新，例如三次插内插法、四次多项式方程、球面三角法等数学方法的使用。

It also made innovations in terms of calculation methods ; for instance ， the use of mathematical approaches like cubic interpolation ， polynomial equations to the 4th order and spherical trigonometry .

该文试从《授时历》诞生的历史必然、辉煌成就及民族文化渊源等方面，论述钱先生对《授时历》研究的贡献。

This paper tries to elaborate on Qian 's achievements in his study of the Shoushi Calendar from its historical inevitability of emergence , its brilliant merits and its profound basis in China 's national culture .

《授时历》是中国古代最优秀的历法。由元代著名科学家郭守敬等人编制，从1281年开始实行，历经整个明代，一直到清初，共用了360多年。

Shoushi Calendar ， the most outstanding calendar in ancient China ， was compiled by Guo Shoujing ， a prominent scientist in the Yuan Dynasty ， and his colleagues . Enforced in 1281 , throughout the Ming Dynasty and the begin-nin4 of the Qinq Dynasty ， the calendar was used for over 360 years .

《授时历》以365.2425天为一岁，和地球绕太阳一周的实际时间只差26秒，与和现行的公历（《格列高利历》）一年周期相同，但比现行公历的确立早300年。

The Imperial Calendar 11 took 365 . 2425 days as a year and which only missed 26 seconds compared with the real time needed that the sun goes around the earth once . It is same to the Geliego Calendar in use today , but it was three hundred years earlier than the Geliego Calendar .