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Halley's comet set out to return to the solar system this month and is expected to return on July 28, 2061.

2024-04-22 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >


Shulou( Report--, December 23 (Xinhua)-- Halley's comet, the first periodic comet discovered and recorded, began to "turn" and return to the solar system after it reached aphelion (the farthest point from the sun) at the beginning of this month.

Public data show that Halley's comet reached aphelion on December 9, about 5.3 billion kilometers from the sun.

Lai Dihui, a member of the Chinese Astronomical Society and director of the Tianjin Astronomical Society, said in an interview that Halley's Comet was recorded in the Spring and Autumn period in ancient China as early as 613 BC: "in Autumn and July, there are stars (that is, Halley's Comet) entered the Beidou," which is also the earliest known record of Halley's Comet.

Lai Dihui said that Halley's comet is not only the first periodic comet discovered and recorded by mankind, but also the only known short-period comet that can be seen directly with the naked eye, returning every 76.1 years. The arrival of Halley's comet at aphelion marks the middle of its return cycle. "from now on, Halley's comet has entered the 'countdown' to return to human vision. But if you want to really see it, you still need to wait patiently." note: according to astronomers, Halley's comet will pass perihelion on July 28, 2061, and the comet will break down into a head and tail shaped like a broom under solar radiation.

It is reported that because the orbit of comets often changes under the influence of the gravity of big planets, the exact time of Halley's comet passing perihelion is still variable.

Halley's comet was named after the British astronomer Halley, who was also the discoverer of the modern comet. He had predicted that the comet would appear at the end of 1758, but it "arrived as promised", but Harley had already passed away. The nearest return of Halley's comet was in 1986.

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