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Science | This year's brightest comet will offer the opportunity to observe – Xinhuanet

Xinhua Net
Time: 2018-12-10 16:27

Xinhua News Agency, Tianjin on December 9 (Reporter Zhou Runjian) Astronomical experts said that the brightest comet in 2018 will pass the next day on the 12th and the nearest place on the 16th. If the weather is fine, the atmospheric transparency is high enough , and the public is interested in China With a small telescope you can see it.

The comet is a small celestial body in the solar system. The main component is vandis. Most comets are weak and bright enough to be seen with the naked eye. According to astronomical data, the comet is numbered 46 p / Wirtanen. It's a small short comic that belongs to the regular Muzu comedy. It is often affected by Jupiter's gravity and changes its orbit during operation.

According to astronomical data, the American astronomers discovered the trace of this comedy on January 17, 1948, in a photographic film. The comet was once the target of the European Space Agency "Rosetta". Later, due to the lack of detection window, it was abandoned, and the lander published by "Rosetta" landed successfully on another comet.

Shi Zhicheng, a member of the Chinese Astronomical Society and a member of the Tianjin Astronomical Society, said that the 46p chamber passed the 12th and nearest to the 16th, only 0.078 astronomical units from the ground, which is 11.62 million kilometers , which is the comet since 70 years ago. The closest to the earth since its discovery.

"This comet is very suitable for observation on the northern hemisphere, but because its own size is not large, the brightness will not be too high, it is estimated to be around 3, not far from the Taurus comedy, the observation difficulty is still not small." Shi Zhicheng tip It is said that in the middle of December is a good time to observe the 46p comet. "At 9:00 every evening, the Bull rises to the southeast, and the Pleiades group is very eye-catching. Interested astronomers can prepare a small telescope in advance and search for it near this amazing cluster. This comic mysterious beauty with a tail If the atmospheric transparency is good enough, the possibility of discovering this comet with the naked eye is not ruled out. "

(Editor: Wei Xiaohang)

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