“Melancholy is due to one’s own incompetence, worry is due to unsatisfied desires, and irritability is a sign of cowardice.” Yes, as we grow up we need to learn to manage our emotions, then , this comet brought us Halley’s Comet. Which country left the earliest record? Let’s take a look!
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In 1695, Edmond Halley, who was already the secretary of the Royal Society, began to study comets intently. He selected 24 comets from the comet records from 1337 to 1698 and spent a year calculating their orbits. It was found that the orbits of the three comets that appeared in 1531, 1607 and 1682 looked exactly the same. Although there was a one-year difference in the time of passing through perihelion, it may be explained that it was caused by the gravitational perturbation of Jupiter or Saturn.
A thought quickly flashed through his mind: these three comets may be the three returns of the same comet. But Halley did not immediately draw this conclusion. Instead, he tirelessly searched forward and found that there were records of great comets in history from 1456, 1378, 1301, 1245, and until 1066.
In Halley's time, no one had realized that comets regularly returned to the sun. Since Halley had this bold idea, he devoted himself wholeheartedly to the observation and study of comets with great interest. After extensive observation, research and calculations, he boldly predicted that the comet that appeared in 1682 would return again at the end of 1758 or early 1759. Halley was nearly 50 years old when he made this prediction, and it will take another 50 years to see whether his prediction is correct.
He realized that he would not be able to see the comet return with his own eyes, so he said in a humorous and regretful tone: If the comet does return in 1758 according to my prediction, it is fair. Descendants will probably not refuse to admit that it was first discovered by an Englishman. More than 10 years after Halley's death, at the end of 1758, the first comet predicted to return was observed by an amateur astronomer. It returned to the vicinity of the sun on time.
Halley’s prediction in the early 18th century was finally confirmed after more than half a century. In order to commemorate him, later generations named the comet "Halley's Comet". In fact, in history, every return to my country from 240 BC has been recorded. The earliest one may be the year when King Wu of Zhou conquered Zhou, that is, 1057 BC. Halley's Comet returns every approximately 76 years. A great deal of observational research can be done on Halley's Comet as it returns. Halley's Comet last returned in 1986. China, like other countries, conducted a large number of observations on it. It will not return again until around 2061.
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