What is the Halley Comet?

Halley’s Comet is one of the most famous comets in the universe. This comet is periodic because it is found in the vicinity of the Earth after every 75 years. Humans have the opportunity to see Halley’s comet twice in their lives. The last comet appeared in 1986 and its next appearance will be in 2061. Edmond Halley was an English astronomer who had been editor, friend and editor of Isaac Newton. He realized that the same comet appeared in the Solar System in 1532, 1607 and 1682. In the end, his observation was accurate and the comet was named after Halley. After many calculations based on the model and the comets and orbits of the solar system, Halley predicted that Halley’s comet would reappear in 1758. However, he never lived to see it.

A brief history of Halley’s comet

As early as 240 BC, there were observations of Halley’s Comet returns to the inner Solar System. There are clear documents made by the Babylonian, Chinese and medieval European chroniclers on the appearance of this strange comet. However, people did not realize that there was a pattern in the comet’s appearances. Moreover, they had no idea that it was the same comet. It was not until 1705 that Halley confirmed these two facts about the comet.

Discovery of the recurrence of Halley’s comet

Many astronomers had claimed that the earth was the center of the universe except Nicolaus Copernicus who claimed that the sun was the center of the solar system. Copernicus calculations allowed astronomers to describe how objects move around the universe and around the solar system. However, Copernicus had taken a long time to elaborate these calculations. Halley Edmond recorded his findings on comets 24 in a book entitled “A synopsis of comet astronomy”. The most exciting thing about his findings is that he discovered that three of the comets that appeared between 1337 and 1698 were very similar. These comets had identical parameters and the same size of orbit. Halley concluded that a similar comet would come to earth again.

Today’s observation of Halley’s comet

Halley’s most spectacular comet is the one that appeared on 1910. It was the first time scientists had captured Halley’s comet in front of the camera. Its distance from the earth was 22.4 million kilometers. In 1986, astronomers sent a spaceship to see Halley’s comet as it arrived in the vicinity of the earth. They observed that the comet became weak and a distant object as it approached the sun. Two spaceships called Vega 1 and 2 from the Soviet Union and France were able to capture the nucleus of the comet for the first time. A NASA spaceship took photographs of Halley’s comet from a distance of 28 million kilometers. With all the technological progress in today’s world, you can’t expect to see Halley’s comet alone in 2061.

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