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The Great Comet of 390 AD, also known as C/390 Q1 by its modern designation, was a comet that appeared very bright in the night sky. It was recorded prominently in ancient Chinese and Korean texts, particularly the Chén Shū .
The Chinese records are not only the most extensive from ancient times, they are also the most accurate, often to within half a degree of right ascension. Western measurements did not overtake them for accuracy until the fifteenth century: in 1456 AD Paolo Toscanelli tracked the progress of Halley's Comet to within a fraction of a degree. [3]
The arrows could hit animals or people and were feared when walking at night. Comets were conceived as smoking stars and as bad omens, e.g., announcing the death of a ruler. [9] Ancient Chinese records of comet apparitions have been particularly useful to modern astronomers. They are accurate, extensive, and consistent over three millennia.
He dates first the great comet to ”about the time of the earthquake in Achaea”, but later he says more specifically that it appeared ”in the archonship of Asteius”, who according to Diodorus was the archon in the year of the earthquake in Achaea, which from Marble Parium can be fixed to 373/372 BC. The dating by Aristotle of the comet ...
Caesar's Comet was known to ancient writers as the Sidus Iulium ("Julian Star") or Caesaris astrum ("Star of Julius Caesar"). The bright, daylight-visible comet appeared suddenly during the festival known as the Ludi Victoriae Caesaris—for which the 44 BC iteration was long considered to have been held in the month of September (a conclusion drawn by Edmund Halley).
The confirmation of the comet's return was the first time anything other than planets had been shown to orbit the Sun. [36] It was also one of the earliest successful tests of Newtonian physics, and a clear demonstration of its explanatory power. [37] The comet was first named in Halley's honour by French astronomer Nicolas-Louis de Lacaille in ...
The Divination by Astrological and Meteorological Phenomena (Chinese: 天文氣象雜占; pinyin: Tiān Wén Qì Xiàng Zá Zhàn), also known as Book of Silk is an ancient astronomy silk manuscript compiled by Chinese astronomers of the Western Han dynasty (202 BC – 9 AD) and found in the Mawangdui of Changsha, Hunan, China in 1973.