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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]
Little is known of what people thought about comets before Aristotle, who observed his eponymous comet, and most of what is known comes secondhand.From cuneiform astronomical tablets, and works by Aristotle, Diodorus Siculus, Seneca, and one attributed to Plutarch but now thought to be Aetius, it is observed that ancient philosophers divided themselves into two main camps.
Heinrich Kreutz was a German astronomer, [11] who claimed that the orbits of several sungrazing comets were related and likely produced when a large Sun-grazing comet fragmented hundreds of years previously. That group, known as the Kreutz Sungrazers, has produced some of the brightest comets ever observed, including X/1106 C1 and Comet Ikeya ...
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.
The exploding comet also created tornado-force winds which hurtled the chunks of molten glass across the region. A comet glowing in the night sky just above the horizon. (Image/Alberto Agostini)
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 Virtual Telescope Project will host a free live stream of the comet on its website and YouTube channel starting at 9 p.m. Mountain time/ 8 p.m. Pacific time. Comet C/2022 E3 (ZTF), which is ...
Periodic comets (also known as short-period comets) are comets with orbital periods of less than 200 years or that have been observed during more than a single perihelion passage [1] (e.g. 153P/Ikeya–Zhang). "Periodic comet" is also sometimes used to mean any comet with a periodic orbit, even if greater than 200 years.
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