Comet is here! Missed this time to wait for another 193 years
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Original: Eddie lrizarry
Translation: Mu Xinxiang
School translation: Tu Tianyu Zhou Xueyun
Arrangement: Zhao Shuchen
Backstage: Li Ziqi Dong Tengchen
Original link: https://earthsky.org/astronomy-essentials/famous-det-67p-c-g-closest-nov-20214/2214/
The picture shows the night sky around October 28, 2021 to November 9, 2021. The comet is located in Gemini Sky.
Image source: EDDIE Irizarry/Stellarium
Comet 67P/Churyumov-Gerasimenko will be nearly near and 12th, November 11, 2021. On October 26, the comet was too late, but at that time, the bump and the comet’s position in Gemini was almost the same, so it was difficult to observe. However, the moon will continue to move. By November 8th, the comet will be located near Beihe 3rd (Gemini β). Recently, this comet was 61 million kilometers from Earth, located between the Earth and Mars. In the next 193, until 2214, this would be the closest to the earth 67P.
The exact time of its near -near location is 08:50 on November 12, Beijing time.
67P/C-G is one of the most thorough comets. In August 2014, the Rosetta spacecraft of the European Air Bureau met with it, and for the first time before the end of the year, his lander “Phille” was sent to the surface of the comet. The detector flew for two years with comets for two years.
67P/Churyumov-Gerasimenko is an ordinary comet, with a small radius running around the sun. On October 22, 1969, Soviet astronomer Klim Ivanovych Churyumov and Switrana Ivanova Gerasimenko (Svetlana Ivanovna Gerasimenko) Discovered it. It only takes 6.43 years around the sun, which makes it an excellent goal for the detection of spacecraft. Its core is about 4.2 kilometers wide. Like many small and cold comets in our solar system, 67P is divided into half like a dumbbell. Astronomers believe that double -petal comets are formed in the early stages of the solar system about 4.5 billion years ago, and they were formed in the slow collision of ice fragments.
This beautiful picture shows the famous 67P/ChuryUMOV-GERASIMENKO comet on October 16, 2021 with the evacuation star group MESSIER 35 (left) and the distant spherical star group NGC 2158 (bottom right). The picture was taken by Raymond Negrow/Caribbean Astronomical Society in St. Delman, Puerto Rorigan.
The double-petal comet 67P/Churyumov-Gerasimenko was shot on March 27, 2016. At that time, it was only 329 kilometers away from the Rosetta spacecraft. Picture source: ESA/Rosetta/Navcam/NASA.
1 The detection of 67P detectors of Rosetta
The Rosetta mission named after the Rosetta stone monument (the precious tool of the ancient Egyptian text) is a pioneering comet task. This is the first rail aircraft to accompany flying comets in space for more than a year in space.
After recently, when the comet began to fly away from the sun, the detector continued to stay with the comet until the second year. The lander of the Rosetta mission was named Philler -an ancient Egyptian monument. On November 12, 2014, the Philler landed on the surface of 67P and became the first spacecraft that landed on the comet. Because the gravity of the comet was too small, Flael made three landing attempts to succeed, and the first two times were played aside.
All in all, Roseita’s task has greatly deepened our understanding of the comet, and no matter how great its influence is. Most of their conjectures of scientists have been confirmed. For example, we have long been depicting the comet’s comet’s nucleus that releases gas when its orbit is close to the sun. But in the image taken by Roseta, I really saw the gas sprayed by the core of the 67P comet … that’s really beautiful!
67P/Churyumov-Gerasimenko Jet ejected. Photo source: Oukong Bureau Rosetta Aerospace/NASA.
67P/Churyumov –Gerasimenko, Raymond Negron (Raymond Negron) was shot with a 8 -inch telescope with a diameter of 8 inches in the backyard of Puerto Rorigan. Thank you, Raymond!
2 How to see the famous 67P comet
Although this comet is gradually becoming brighter, unfortunately, it is still not enough to be seen by the naked eye when it passes near the earth in 2021. However, when it is the brightest, its brightness will be around 9 to 10. It can be observed with the help of the amateur telescope vision, and it is easy to shoot with a small -caliber shooting system.
Observe 67P/ChuryUmov-Gerasimenko in the backyard. It is definitely interesting. When you look at it, you can think about it. This rock ice mixture has been visited by a remote control detector launched by humans, which is really a wonderful thing. The chart below may help you find the comet 67P.
This picture shows 11:30 pm Beijing time (November 11th to 12th, 2021), that is, 67P closest to the East Sky on the night of the earth. You can use the brightest star Beihe II and Beihe III to help determine the position of the comet. They will form a arc with the comet.
Picture source: EDDIE Irizarry/Stellarium.
The enlarged image, an observer using an automatic star -finding telescope can directly locate the device to one of the reference stars, and easily position the comet at the nearby place that night.
3 Are you still waiting for a big comet?
Are you still waiting for a comet that can be seen with a binocular telescope, or even the naked eye? Another comet C/2021A1 (Leonard) may become the brightest comet this year. For more details, please continue to pay attention to the next push!
Editor in charge: Zhou Xueyun
Mufu New Media Editorial Department
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