Who is the author of the service calendar?

Who is the author of the service calendar?

Xu Heng, Guo Shoujing are the authors of Chronological Calendar, an ancient calendar masterpiece.

Shoushi Calendar, the calendar name implemented in A.D. 128 1 year, was named after Kublai Khan in Yuan Shizu, and it was called Shoushi Calendar in the original works and history books. This method takes 365.2425 days as one year old, which is only 25.92 seconds different from the modern observation value of 365.2422. Its accuracy is equivalent to the Gregorian calendar, but it was adopted more than 300 years earlier than in the west.

Xu Heng, whose real name is Zhong Ping, is called Lu Zhai, and the world calls him "Mr. Lu Zhai". Huaiqing Road, Hanoi County. Famous Neo-Confucianists and Educators in the Late Jin and Early Yuan Dynasties.

Guo Shoujing, the word Ruosi, Han nationality, is from Xingtai County, Shunde Prefecture. Famous astronomer, mathematician and expert in water conservancy engineering in Yuan Dynasty.

Extended data

Historical significance

It reflected the new level of astronomical calendar in China at that time. It has many innovations, such as setting the tropical year to 365.2425 days, which is only 25.92 seconds shorter than the actual time for the earth to go around the sun, and is exactly the same as the Gregorian calendar used in the modern world. In the process of compiling, their "three-difference interpolation formula" and "spherical triangle formula" are outstanding achievements of world significance.

Chronicles have stood the test of time. It has been used in China for more than 300 years and has a great influence. North Korea and Vietnam have adopted time calendars.

References:

Baidu Encyclopedia-Xu Heng

Which dynasty is the chronograph calendar?

The calendar was written by Xu Heng, Wang Xun and Guo Shoujing in Yuan Dynasty.

The name of the calendar implemented in A.D. 128 1 was named after Kublai Khan in Yuan Shizu. Both original works and history books are called chronological chronicles. This method takes 365.2425 days as one year old, which is only 25.92 seconds different from the modern observation value of 365.2422. Its accuracy is equivalent to the Gregorian calendar, but it was adopted more than 300 years earlier than in the west. In A.D. 1276, Yuan Shizu ordered Xu Heng to "take charge of the affairs of Taishi Museum" and take full charge of this work, with Wang Xun and Guo Shoujing as deputy curators and * * * as co-authors.

The difference between the original calendar and the chronograph calendar

In the early years of the Western Han Dynasty, taichu calendar law followed the Zhuan Xu calendar of the Qin Dynasty. However, there are some mistakes in Zhuan Xu Calendar. BC 104, at the suggestion of Sima Qian and others, Emperor Wu of the Han Dynasty ordered the calendar to be changed. And instructed,, Luo and others to discuss the creation of "Han Li", which was completed in the seventh year of Emperor Wu of the Yuan Dynasty. In May this year, the name of the country was changed to Taichu, and this set of "Han Li" was promulgated and implemented. Later generations called this calendar "taichu calendar" by issuing a title. Taichu calendar stipulates that a year is equal to 365.2502 days and January is equal to 29.5086 days. Use addition instead of subtraction to adjust the time difference. Change October as the beginning of the year to the first month of the year; Beginning to adopt twenty-four solar terms that are beneficial to agricultural time; Take the month without neutral gas as leap month to adjust the contradiction between the sun and the lunar calendar. This is an epoch-making progress in the history of China. Taichu calendar method also drew a solar eclipse cycle of 135 months based on astronomical observations and years of records by historians. Taichu calendar is not only the first relatively complete calendar in China, but also the most advanced calendar in the world at that time. It has been running for 189 years since it came out.

After Zhuan Xu unified China through the calendar of Qin Dynasty, Zhuan Xu Calendar was published in the whole country. Zhuan Xu calendar is a quarterly calendar. The tropic year is 365 and 1/4, the first lunar month is 29 and 499/940, October is the first year, and the leap month is placed after September, which is called the last September. It was used until the period of Emperor Wu of the Han Dynasty. It is one of the six ancient calendars.

The calendar is 29.530593 days per month, and the month without neutral atmosphere is leap month. It officially abolished the cumulative year of Shang Yuan in ancient times, and took any year in modern times as an era, breaking the habit of making calendars in ancient times, which was the fourth major reform in the history of China. Dali, which was promulgated in the early Ming Dynasty, is basically a Calendar of the Dynasties. If these two calendars are regarded as one, they can be said to be the longest calendar in the history of China, reaching 364 years. 1June, 276 to1February, 280, Xu Heng, Wang Xun, Guo Shoujing, Yang Gongyi and others set up 27 stations in the vast area of more than 6,000 miles from east to west, north and south 1 1000, and completed the actual measurement [65,438 historical materials of the Yuan Dynasty, such as

The calendar is also called "the calendar of the later Han Dynasty". The calendar implemented in the second year of Zhang He in the Eastern Han Dynasty. Created by Bian Xin and Li Fan. It is stipulated that a year is 365/4 days, January is 29499/940 days, 19 lunar year has seven leap months, and the rest of the year is a quarter of a day. Because the original calendar used at that time was larger than a quarter calendar, it was obviously spacious. After 180 years of use, it was obviously inconsistent with the astronomical phenomena. Bian Xin and Li Fan compiled a new calendar and restored the ancient law. In the third year after Emperor Wen of Han Dynasty, it has been 320 years since Confucius was made a forest in 14 years. This is the "calendar of the later Han Dynasty". Its data is more accurate than the original calendar. "The book of the later han dynasty. In the "Fa Li Ji": "A quarter almanac is the best example."

Introduction to service calendar

1, an ancient calendar masterpiece, The Timing Calendar was written by Guo Shoujing.

2. Shoushi Calendar, the calendar name implemented in 128 1 year, was named after Kublai Khan in Yuan Shizu, and it was called Shoushi Calendar in the original works and history books. This method takes 365.2425 days as one year old, which is only 25.92 seconds different from the modern observation value of 365.2422. Its accuracy is equivalent to the Gregorian calendar, but it was adopted more than 300 years earlier than in the west.

3, Guo Shoujing, the word is thoughtful. Xingtai County, xing zhou. Famous astronomer, mathematician and expert in water conservancy engineering in Yuan Dynasty.

4. In his early years, he studied under Liu,, and later entered Taishiling, a university student in the museum, and a scholar in Zhitai History Museum. He is called "Guo Taiming". Yuan Renzong was delayed for three years, and Guo Shoujing died at the age of eighty-six. He is the author of fourteen kinds of astronomical calendar works, such as "Push Step" and "Licheng".

Guo Shoujing compiled a calendar in Yuan Dynasty.

Guo Shoujing spent more than two years compiling a new calendar-service calendar. In the past, the mantissa less than one day in the calendar was mostly expressed by fractions, which was very complicated to calculate. However, Guo Shoujing's "chronograph" was changed to decimal, and he calculated that a year is 365.2425 days, only "seconds" away from period of revolution, which is the same as the Gregorian calendar in the world today.