Chinese astronomy
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[[Image:Dunhuang star map.jpg|thumb|200px|The [[Dunhuang map]] from the [[Tang Dynasty]] (North Polar region). This map is thought to date from the reign of [[Emperor Zhongzong of Tang]] ([[705]]-[[710]]). Founded in [[Dunhuang]], [[Gansu]]. Constellations of the three schools were distinguished with different colors: white, black and yellow for stars of [[Wu Xian (astronomer)|Wu Xian]], [[Gan De]] and [[Shi Shen]] respectively. The whole set of star maps contained 1,300 stars.]]
'''Astronomy in China''' has a very long history. [[Oracle bone]]s from the [[Shang Dynasty]] ([[2nd millennium BC]]) record eclipses and novae. Detailed records of astronomical observations were kept from about the [[6th century BC]] until the introduction of Western astronomy and the telescope in the [[16th century]]. The practice of astronomy in [[China]] was fundamentally changed by extended contact with Western astronomy. Today, China continues to be active in astronomy, with many observatories and [[Chinese space program|its own space program]].
== Early history ==
=== Purpose of astronomical observations in the past ===
One of the main functions was for the purpose of timekeeping. The Chinese used a [[lunisolar calendar]] , but because the cycles of the Sun and the Moon are different, [[intercalation]] had to be done.
The [[Chinese calendar]] was considered to be symbol of a dynasty. As dynasties would rise and fall, astronomers and astrologers of each period would often prepare a new calendar to be made, with observations for that purpose.
Astrological [[divination]] was also an important part of astronomy. Astronomers took careful note of "guest stars" which suddenly appeared among the [[fixed star]]s. The [[supernova]] that created the [[Crab Nebula]] in [[1054]] is an example of a guest star observed by Chinese astronomers, recorded also by the [[Islamic astronomy|Arab astronomers]], although it was not recorded by their European contemporaries. Ancient astronomical records of phenomena like supernovae and comets are sometimes used in modern astronomical studies.
== Chinese constellations ==
==== History of Chinese constellations ====
The divisions of the sky began with the [[Northern Dipper]] and the 28 mansions.
In early 1980s, a tomb was found at Xishuipo (西水坡) in [[Puyang]], [[Henan]] Province. There were some clamshells and bones forming the images of the [[Azure Dragon]], the [[White Tiger (Chinese constellation)|White Tiger]] and the [[Northern Dipper]]. It is believed that the tomb belongs to the [[Neolithic]] Age, about 6,000 years ago.
Star names relating to the 28 lunar mansions were found on oracle bones dating back to the [[Wu Ding|Wuding]] Period, about 3,200 years ago.
In [[1978]], a lacquer box was excavated from the tomb of Zeng Hou Yin in Suixian, [[Hubei]] Province. Names of the 28 lunar mansions were found on the cover of the box, proving that the use of this classification system was made before 433 BC.
As lunar mansions have such an ancient origin, the meaning of most of their names have become obscure. Even worse, name of each lunar mansion consists of only one Chinese word, and the meaning of which could vary at different times in history. So the meaning of the names are still under discussion.
Besides 28 lunar mansions, most constellations are based on the works of [[Shi Shen|Shi Shen-fu]] and [[Gan De]], who were astrologists during the period of [[Warring States]] (481 BC - 221 BC) in China.
In the late period of the [[Ming Dynasty]], the agricultural scientist and mathematician [[Xu Guangqi]] (1562 - 1633 AD) introduced 23 additional constellations which are near to the Celestial South Pole, which are based on star catalogues from the West (see [[Matteo Ricci]]).
== Star catalogues and Maps ==
=== Star catalogues ===
In the [[4th century BC]] the two Chinese astronomers responsible for the earliest information going into the star catalogues are [[Shi Shen]] and [[Gan De]] of the [[Warring States period]].<ref name="Peng">Peng, Yoke Ho (2000). Li, Qi and Shu: An Introduction to Science and Civilization in China. Courier Dover Publications. ISBN 0486414450</ref>
{|class="wikitable"
! Author || Transliterated name || Chinese Catalogue name || Pinyin
|-
| [[Shi Shen]] || Shi Shen astronomy || 石申天文 || Shi Shen tienwen<ref name="Peng" />
|-
| [[Gan De]] || Astronomic star observation || 天文星占 || Tianwen xingzhan<ref name="Peng" />
|-
</table>
These books appeared to have lasted till the [[6th century]], but are lost after that.<ref name="Peng" /> A number of books share similar names, often quoted and named after them. These texts should '''not''' be confused with the original catalogues written by them. Notable works that helped preserve the contents include:
{|class="wikitable"
! Author || Transliterated name || Chinese name || Pinyin || Comments
|-
| Ma Xian (馬顯) || Star Manual of the Masters Gan and Shi || 甘石星經 || Gan Shi Xingjing || Despite having the name credited to Shi and Gan, it was actually compiled circa 579 AD as an appendix to a calendar treatise.<ref>Kistemaker, Jacob. Sun, Xiaochun. [1997] (1997). The Chinese Sky During the Han: Constellating Stars and Society. BRILL publishing. ISBN 9004039384.</ref>
|-
| || [[Book of Jin]] || 晉書 || Jin shu || In the Astronomical chapters of the text<ref name="Peng" />
|-
| || [[Book of Sui]] || 隋書 || Sui shu ||<ref name="Peng" />
|-
| [[Gautama Siddha]] || [[Treatise on Astrology of the Kaiyuan Era]] || 開元占經 || Kaiyuan Zhanjing || During the reign of [[Emperor Xuanzong of Tang]] (712 - 756 AD). After analyzing and providing summary on the work of Gan De and Shi Shen, Tang era astronomers mentioned the names of more than 800 stars that were found.<ref name="Peng" /> 121 of them marked with positions.<ref>Milone, Eugene F. Humiston Kelley, David. Exploring Ancient Skies: An Encyclopedic Survey of Archaeoastronomy. [2005] (2005). ISBN 0387953108</ref> The astronomical table of [[Trigonometric functions|sines]] by the [[Indian astronomy|Indian astronomer]] and [[Indian mathematics|mathematician]], [[Aryabhata]], were also translated into the ''Kaiyuan Zhanjing''.<ref name="needham volume 3 109">[[Joseph Needham]], Volume 3, p. 109</ref>
|-
| || The Great Firmament Star Manual Common to Astrology || 通占大象曆星經 || Tongzhan taxiangli xingjing || This renamed star manual is incorporated in the [[Taoist]] book [[Daozang]].<ref name="Peng" />
|-
</table>
[[Wu Xian (astronomer)|Wu Xian]] (巫咸) has been one of the astronomers in debate. He is often represented as one of the "Three Schools Astronomical tradition" along with Gan and Shi.<ref name="Whitfield">Whitfield, Susan. [2004] (2004). The Silk Road: Trade, Travel, War and Faith. British Library Staff. Serindia Publications. ISBN 1932476121.</ref> The Chinese classic text "Star Manual of Master Wu Xian" (巫咸星經), and its authorship is still in dispute because it mentioned names of Twelve Countries, which did not exist in the [[Shang Dynasty]], the era of which it was supposed to have been written. Moreover, it was customary in the past for the Chinese to forge works of notable scholars, as this could lead to a possible explanation for the inconsistencies found. Wu Xian is generally mentioned as the astronomer who lived many years before Gan and Shi.
The [[Han Dynasty]] astronomer and inventor [[Zhang Heng]] (78 - 139 AD) not only catalogued some 2500 different stars, but also recognized over 100 different constellations. Zhang Heng also published his work ''Ling Xian'', a summary of different astronomical theories in China at the time. In subsequent period of the [[Three Kingdoms]] (220 - 280 AD), [[Chen Zhuo]] (陳卓) combined the work of his predecessors, forming another star catalogue. This time 283 constellations and 1464 stars were listed. The astronomer [[Guo Shoujin]] of the [[Yuan Dynasty]] (1279 - 1368 AD) created a new catalogue which was believed to contain thousands of stars. Unfortunately, many of documents at that period were destroyed, including that of Shoujin. ''Imperial Astronomical Instruments'' (儀象考成) published in [[1757]] containing 3083 stars exactly.
The [[Ancient Greece|Greek]] [[Hipparchus]] later created the first star catalogue for the Western world during the [[2nd century BC]].
=== Star maps ===
[[Image:Su Song Star Map 1.JPG|thumb|right|230px|A [[star map]] with a cylindrical projection similar to [[Mercator projection]], from Su Song's ''Xin Yi Xiang Fa Yao'', 1092. Although many others were drawn before him, [[Su Song|Su Song's]] star maps represent the oldest existent ones in [[printing|printed]] form.]]
{{main|Chinese star maps}}
The Chinese drew many maps of stars in the past centuries. It is debatable as to which counts as the oldest star maps, since [[Chinese ceramics|pottery]] and old artifacts can also be considered star maps. One of the oldest existent star map in printed form is from [[Su Song]]'s ([[1020]]-[[1101]] AD) [[celestial]] [[atlas]] of 1092 AD, which was included in the [[horological]] treatise on his [[clocktower]]. The most famous one is perhaps the [[Dunhuang map]] found in [[Dunhuang]], [[Gansu]]. Uncovered by the British archaeologist [[Marc Aurel Stein]] in [[1907]], the star map was brought to the [[British Museum]] in [[London]]. The map was drawn on paper and represents the complete sky with more than 1,350 stars. Though ancient Babylonians and Greeks also observed the sky and catalogued stars, no such complete record of the stars may exist or survive. Hence this is the oldest chart of the actual skies in the present.
According to recent studies, the map may date the manuscript to as early as the [[7th century]] AD (Tang Dynasty). Scholars believe the star map dating from 705 to 710 AD, which is the reign of [[Emperor Zhongzong of Tang]]. Some experts from the West think the chart may be a copy of an earlier existing document. There are some texts (Monthly Ordinances, 月令) describing the movement of the sun among the sky each month, which was not based on the observation at that time.
==Lunar and solar eclipses==
The [[ancient Chinese]] astronomer [[Shi Shen]] (fl. 4th century BC) was aware of the relation of the moon in a solar eclipse, as he provided instructions in his writing to predict them by using the relative positions of the moon and sun.<ref name="needham volume 3 411">Needham, Volume 3, 411.</ref> The 'radiating influence' theory, where the moon's light was nothing but a reflection of the sun's, was supported by the mathematician and music theorist [[Jing Fang]] (78–37 BC) yet opposed by the Chinese philosopher [[Wang Chong]] (27–97 AD). In his writing, Wang admits that this theory was nothing new in China. The Chinese astronomer and inventor [[Zhang Heng]] (78–139 AD) wrote of both [[solar eclipse]] and [[lunar eclipse]] in the publication of ''Ling Xian'' (靈憲), 120 AD:
<blockquote>
The sun is like fire and the moon like water. The fire gives out light and the water reflects it. Thus the moon's brightness is produced from the radiance of the sun, and the moon's darkness (pho) is due to (the light of) the sun being obstructed (pi). The side which faces the sun is fully lit, and the side which is away from it is dark. The planets (as well as the moon) have the nature of water and reflect light. The light pouring forth from the sun (tang jih chih chhung kuang) does not always reach the moon owing to the obstruction (pi) of the earth itself—this is called 'an-hsü', a '''lunar eclipse'''. When (a similar effect) happens with a planet (we call it) an occulation (hsing wei); when the moon passes across (kuo) (the sun's path) then there is a '''solar eclipse''' (shih).<ref name="needham volume 3 414">Needham, Volume 3, 414.</ref>
</blockquote>
The later [[Song Dynasty]] scientist [[Shen Kuo]] (1031–1095) used the models of lunar eclipse and solar eclipse in order to prove that the celestial bodies were round, not flat. This was actually an extension of the reasoning of Jing Fang and other theorists as early as the Han Dynasty. In his ''[[Dream Pool Essays]]'' of 1088 AD, Shen related a conversation he had with the Director of the Astronomical [[Observatory]], who had asked Shen if the shapes of the sun and moon were round like balls or flat like fans. Shen Kuo explained his reasoning for the former:
<blockquote>
If they were like balls they would surely obstruct each other when they met. I replied that these celestial bodies were certainly like balls. How do we know this? By the waxing and waning of the moon. The moon itself gives forth no light, but is like a ball of silver; the light is the light of the sun (reflected). When the brightness is first seen, the sun (-light passes almost) alongside, so the side only is illuminated and looks like a crescent. When the sun gradually gets further away, the light shines slanting, and the moon is full, round like a bullet. If half of a sphere is covered with (white) powder and looked at from the side, the covered part will look like a crescent; if looked at from the front, it will appear round. Thus we know that the celestial bodies are spherical.<ref name="needham volume 3 415 416"/>
</blockquote>
When he asked Shen Kuo why eclipses occurred only on an occasional basis while in conjunction and opposition once a day, Shen Kuo wrote:
<blockquote>
I answered that the ecliptic and the moon's path are like two rings, lying one over the other, but distant by a small amount. (If this obliquity did not exist), the sun would be eclipsed whenever the two bodies were in conjunction, and the moon would be eclipsed whenever they were exactly in position. But (in fact) though they may occupy the same degree, the two paths are not (always) near (each other), and so naturally the bodies do not (intrude) upon one another.<ref name="needham volume 3 415 416">Needham, Volume 3, 415-416.</ref>
</blockquote>
== Equipment and innovation ==
=== Armillary sphere (渾儀) ===
[[Image:YiXiangKaoCheng 02.JPG|thumb|right|280px|A method of making observation instruments at the times of [[Qing Dynasty]]]]
The earliest development of the [[armillary sphere]] in China goes back to the astronomers [[Shi Shen]] and [[Gan De]] in the 4th century BC, as they were equipped with a primitive single-ring armillary instrument.<ref name="needham volume 3 343">Needham, Volume 3, 343.</ref> This would have allowed them to measure the north polar distance (去極度, the Chinese form of declination) and measurement that gave the position in a ''hsiu'' (入宿度, the Chinese form of right ascension).<ref name="needham volume 3 343"/>
During the [[Western Han Dynasty]] ([[202 BC|202]] BC - [[9]] AD) additional developments made by the astronomers [[Luoxia Hong]] (落下閎), [[Xiangyu Wangren]], and [[Geng Shouchang]] (耿壽昌) advanced the use of the armillary in its early stage of evolution. In 52 BC, it was the astronomer Geng Shou-chang who introduced the first permanently fixed equatorial ring of the armillary sphere.<ref name="needham volume 3 343"/> In the subsequent [[Eastern Han Dynasty]] ( [[23]]-[[220]] AD) period, the astronomers [[Fu An]] and [[Jia Kui]] added the elliptical ring by 84 AD.<ref name="needham volume 3 343"/> With the famous statesman, astronomer, and inventor [[Zhang Heng]] ([[78]]-[[139]] AD), the sphere was totally complete in 125 AD, with horizon and meridian rings.<ref name="needham volume 3 343"/> It is of great importance to note that the world's first [[hydraulic]] (i.e. water-powered) armillary sphere was created by Zhang Heng, who operated his by use of an inflow [[clepsydra]] clock (see Zhang's article for more detail).
=== Abridged armilla (簡儀) ===
Designed by famous astronomers [[Guo Shoujing]] in 1276 AD, it solved most problems found in armillary spheres at that time.
The primary structure of Abridged Armilla contains two large rings that are perpendicular to each other, of which one is parallel with the equatorial plane and is accordingly called “equatorial ring”, and the other is a double-ring which is perpendicular to the center of the equatorial ring, revolves around a metallic shaft, and is called “right ascension double-ring”.
The double-ring holds within itself a sighting tube with crosshairs. When observing, astronomers would aim at the star with the sighting tube, whereupon the stars’ position could be deciphered by observing the dials of the equatorial ring and the right ascension double-ring.
A foreign missionary melted the instrument in 1715 AD. The surviving one was built in 1437 AD, and was taken to what is now [[Germany]]. It was then stored in a [[France|French]] Embassy in 1900 during the [[Eight-Nation Alliance]]. Under the pressure of international public discontent, Germany returned the instrument to China. In 1933 it was placed in [[Purple Mountain Observatory]], which prevented it from being destroyed in the [[Second Sino-Japanese War|Japanese invasion]]. In the 1980s it had become seriously eroded and rusted down, and was nearly destroyed. In order to restore the device, the [[Nanjing]] government spent 11 months to repair it.
=== Celestial globe (渾象) before Qing Dynasty ===
[[Image:ChineseCelestialGlobe.JPG|thumbnail|right|200px|Celestial globe from [[Qing Dynasty]]]]
Besides star maps, the Chinese also made Celestial globes, which show stars position liked a star map and can present the actual sky in a specific time. Because of its Chinese name, the Chinese always mix it up with Armillary sphere, which is just one word different (渾象 vs. 渾儀).
According to records, the first Celestial globe was made by Geng Shou-chang (耿壽昌) between 70BC and 50BC. In the [[Ming Dynasty]], the celestial globe at that time was a huge globe, showing the 28 mansions, celestial equator and ecliptic. But just like many other equipment, none of them have survived.
=== Celestial globe (天體儀) in Qing Dynasty ===
Celestial globe was named 天體儀 in [[Qing Dynasty]]. The one in [[Beijing Ancient Observatory]] was made by Belgian missionary [[Ferdinand Verbiest]] (南懷仁) 1673 AD. Unlike other Chinese celestial globes, it employs 360 [[degree (angle)|degree]]s rather than the 365.24 degrees (which is a standard in ancient China). It is also the Chinese-first globe which shows constellations near to the Celestial South Pole.
=== The Water-powered Armillary Sphere and Celestial Globe Tower (水運儀象台) ===
The first to invent the [[hydraulic]]-powered armillary sphere was [[Zhang Heng]] ([[78]]-[[139]] AD) of the [[Han Dynasty]]. Zhang was well-known for his brilliant applications of mechanical gears, as this was one of his most impressive inventions (alongside his [[seismograph]] to detect the [[cardinal direction]] of [[earthquake]]s that struck hundreds of miles away).
Started by [[Su Song]] (蘇頌) and his colleagues in 1086 AD and finished in 1092 AD, his large astronomical [[clock tower]] featured an armillary sphere (渾儀), a celestial globe (渾象) and a mechanical chronograph. It was operated by an [[escapement]] mechanism and the earliest known [[chain drive]]. However 35 years later the invading [[Jurchen]] army dismantled the tower in 1127 AD upon taking the capital of [[Kaifeng]]. The armillary sphere part was brought to [[Beijing]], yet the tower was never successfully reinstated, not even by Su Song's son.
Fortunately two versions of Su Song’s treatise written on his clock tower have survived the ages, so that studying his astronomical clock tower is made possible through medieval texts.
=== True north and planetary motion ===
The polymath Chinese scientist [[Shen Kuo]] ([[1031]]-[[1095]]) was not only the first in history to describe the [[magnetic]]-needle [[compass]], but also a more accurate measurement of the distance between the [[polestar]] and [[true north]] that could be used for [[navigation]]. Shen achieved this by making nightly astronomical observations along with his colleague [[Wei Pu]], using Shen's improved design of a wider sighting tube that could be fixed to observe the polestar indefinitely. Along with the polestar, Shen Kuo and Wei Pu also established a project of nightly astronomical observation over a period of five successive years, an intensive work that would even rival the later work of [[Tycho Brahe]] in Europe. Shen Kuo and Wei Pu charted the exact coordinates of the planets on a star map for this project, and created theories of planetary motion, including [[retrogradation]].
==Foreign influences==
===Tang Dynasty===
The astronomical table of [[Trigonometric functions|sines]] by the [[Indian astronomy|Indian astronomer]] and [[Indian mathematics|mathematician]], [[Aryabhata]], were translated into the Chinese astronomical and mathematical book of the ''[[Treatise on Astrology of the Kaiyuan Era]]'' (''Kaiyuan Zhanjing''), compiled in 718 AD during the Tang Dynasty.<ref name="needham volume 3 109">[[Joseph Needham]], Volume 3, p. 109</ref> The ''Kaiyuan Zhanjing'' was compiled by [[Gautama Siddha]], an astronomer and astrologer born in [[Chang'an]], and whose family was originally from [[History of India|India]]. He was also notable for his translation of the [[Navagraha]] calendar into [[Chinese language|Chinese]].
===Yuan Dynasty===
[[Islamic astronomy|Muslim astronomers]] were brought to work on calendar making and astronomy during the [[Yuan Dynasty]]. [[Kublai Khan]] brought [[Iranian peoples|Iranians]] to Beijing to construct an [[observatory]] and an institution for astronomical studies.<ref name=theearth>Richard Bulliet, Pamela Crossley, Daniel Headrick, Steven Hirsch, Lyman Johnson, and David Northrup. The Earth and Its Peoples. 3. Boston: Houghton Mifflin Company, 2005. ISBN 0-618-42770-8</ref> [[Jamal ad-Din (astronomer)|Jamal ad-Din]], a [[Persian people|Persian]] astronomer, presented [[Kublai Khan]] with seven [[Islamic astronomy#Instruments|Persian astronomical instruments]], including a Persian [[globe]] and an [[armillary sphere]], in [[1267]].<ref>{{cite book | last = Zhu | first = Siben | coauthors = Walter Fuchs | title = The "Mongol Atlas" of China | date = 1946 | publisher = [[Fu Jen Catholic University]] | location = [[Taipei]]}}</ref> Several Chinese astronomers also worked at the [[Maragheh observatory]] in [[Maragheh]], [[Iran|Persia]].
===Jesuit activity in China===
The introduction of Western science to China by [[Jesuit]] priest astronomers was a mixed blessing during the late 16th century and early 17th century.
The [[telescope]] was introduced to China in the early 17th century. The telescope was first mentioned in Chinese writing by Emanuel Diaz (Yang MaNuo), who wrote his ''Tian Wen Lüe'' in 1615.<ref name="needham volume 3 444">Needham, Volume 3, 444.</ref> In 1626 [[Adam Schall von Bell]] (Tang Ruowang) published the Chinese treatise on the telescope known as the ''Yuan Jing Shuo'' (The Far-Seeing [[Optic]] Glass).<ref name="needham volume 3 444 445">Needham, Volume 3, 444-445.</ref> The [[Chongzhen Emperor]] (明思宗, [[1627]]-[[1644]]) of the [[Ming Dynasty]] acquired the telescope of [[Johann Schreck|Johannes Terrentius]] (or Johann Schreck; Deng Yu-han) in 1634, ten years before the collapse of the Ming Dynasty.<ref name="needham volume 3 444"/> However, the impact on Chinese astronomy was limited.
The [[Jesuit China missions]] of the 16th and 17th centuries brought Western astronomy, then undergoing its own revolution, to China. After the [[Galileo affair]] early in the 17th century, the Roman Catholic Jesuit order was required to adhere to [[geocentrism]] and ignore the [[heliocentric]] teachings of [[Copernicus]] and his followers, even though they were becoming standard in European astronomy.<ref name="needham volume 3 438 439">Needham, Volume 3, 438-439.</ref> Thus, the Jesuits shared an Earth-centered and largely pre-Copernican astronomy with their Chinese hosts (i.e. the inaccurate [[Ptolemaic]]-[[Aristotelian]] views from Hellenistic times).<ref name="needham volume 3 438 439"/> The Chinese were often fundamentally opposed to this as well, since the Chinese had long believed (from the ancient doctrine of [[Xuan Ye]]) that the celestial bodies floated in a void of infinite space.<ref name="needham volume 3 438 439"/> This contradicted the Aristotelian view of solid concentric crystalline spheres, where there was not a void, but a mass of air between the heavenly bodies.<ref name="needham volume 3 438 439"/>
Of course, the views of Copernicus, [[Galileo]], and [[Tycho Brahe]] would eventually triumph in European science, and these ideas slowly leaked into China despite Jesuit efforts to curb them in the beginning. In 1627, the [[Poles|Polish]] Jesuit [[Michael Boym]] (Bu Mige) introduced [[Johannes Kepler]]'s Copernican Rudolphine Tables with much enthusiasm to the Ming court at [[Beijing]].<ref name="needham volume 3 444"/> In Adam Schall von Bell's Chinese-written treatise of Western astronomy in 1640, the names of Copernicus (Ge-Bai-Ni), Galileo (Jia-li-lüe), and Tycho Brahe (Di-gu) were formally introduced to China.<ref name="needham volume 3 445">Needham, Volume 3, 445.</ref> There were also Jesuits in China who were in favor of the Copernican theory, such as Nicholas Smogulecki and Wenceslaus Kirwitzer.<ref name="needham volume 3 444"/> However, Copernican views were not widespread or wholly accepted in China during this point. In [[Japan]], the [[Dutch people|Dutch]] aided the Japanese with the first modern observatory of Japan in 1725, headed by Nakane Genkei, whose observatory of astronomers wholly accepted the Copernican view.<ref name="needham volume 3 447">Needham, Volume 3, 447.</ref> In contrast, the Copernican view was not accepted in mainstream China until the early 19th century, with the [[Protestant]] missionaries such as [[Joseph Edkins]], [[Alex Wylie]], and [[John Fryer]].<ref name="needham volume 3 447"/>
== Famous Chinese astronomers ==
* [[Gan De]]
* [[Guo Shoujing]]
* [[Shen Kuo]]
* [[Shi Shen]]
* [[Su Song]]
* [[Xu Guangqi]]
* [[Zhang Heng]]
== Observatory ==
*[[Beijing Ancient Observatory]]
*[http://www.chnmus.net/Template/home/chnmuse/Exhibition/exhibition_show_astro_dengfeng.jsp?mid=20060822232370Dengfeng Astro Observatory]
== See also ==
* [[Book of Silk]]
* [[Chinese astrology]]
* [[Chinese constellation]]
* [[Chinese mathematics]]
* [[History of astronomy#China|History of astronomy]]
* [[Timeline of Chinese astronomy]]
* [[Indian astronomy]]
* [[Islamic astronomy]]
==Notes==
{{reflist|2}}
==References==
{{commons|北京古观象台|Beijing Ancient Observatory}}
*Needham, Joseph (1986). ''Science and Civilization in China: Volume 3''. Taipei: Caves Books, Ltd.
== Further reading ==
* ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures'', edited by Helaine Selin. Dordrecht: Kluwer, 1997. S.v. "Astronomy in China," by Ho Peng Yoke.
* Sun Xiaochun, "Crossing the Boundaries Between Heaven and Man: Astronomy in Ancient China," in ''Astronomy Across Cultures: The History of Non-Western Astronomy'', edited by H. Selin, pp. 423-454. Dordrecht: Kluwer, 2000.
* Chan Ki-hung: ''Chinese Ancient Star Map'', Leisure and Cultural Services Department, 2002, ISBN 962-7054-09-7
* ''Gems of the ancient Chinese astronomy relics'', ISBN 962-7797-03-0
== External links ==
*[http://www.math.nus.edu.sg/aslaksen/calendar/chinese.shtml The Mathematics of the Chinese Calendary] by Helmar Aslaksen
*[http://ccat.sas.upenn.edu/~nsivin/cop.html Copernicus in China] by Nathan Sivin
*[http://www.admin.ias.edu/hssem/pingyi.html Boundaries Crossing: Western Astronomy in Confucian China, 1600-1800] by Pingyi Chu
*[http://www.bao.ac.cn/english/home.asp Homepage of the National Astronomical Observatories, Chinese Academy of Sciences]
*[http://www.chnmus.net/Template/home/chnmuse/Exhibition/exhibition_show_astro_excellence.jsp?mid=20060821972450 Chinese Ancient Astronomy]
*[http://hk.science.museum/temp-exh/acae/eintro.htm Ancient Chinese Astronomy Exhibition]
*[http://hua.umf.maine.edu/China/astronomy/index.html#14 Chinese astronomy at the University of Maine]
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