There is an appointment in the starry sky 丨 Saturn will rush to the sun, and the opportunity to observe the "straw hat" is here

Poster production: Feng Juan

According to astronomical popular science experts, Saturn, who has the reputation of "Ring Rings" on August 15th, will bring a performance in Japan. At that time, if the weather is fine, the public that my country is interested can see the beautiful planet's style from the evening of the 14th to the morning of the 15th.

Except for the earth, Saturn can be said to be the most beautiful among solar planets. The first is that it is very large. Saturn is the second largest giant stars in the solar system, which is slightly smaller than Jupiter. The second is the huge aura to add a lot of color to Saturn, just like a "straw hat" covering it on it, which is very obvious.

Saturn close -up. (Picture Source of the National Aeronautics and Space Administration)

When Saturn, Earth and the Sun are generally on a straight line, when the earth is located in the middle of the two, it is called Saturn's rush. Around the day, Saturn is the closest to the earth, with the largest diameter and the highest brightness, and is the best time to observe. Saturn's rotation cycle is 29.5 years, and the meeting cycle is 378 days, which is 1 year and 13 days. Therefore, Saturn's dates are delayed by about 13 days each year than the previous year.

This is a close -up of the Saturn on June 30, 2019, a astronomical enthusiast Zong Haiyang. (I have a picture)

Yang Jing, a member of the Chinese Astronomical Society and a director of the Tianjin Astronomical Society, introduced that Saturn's rushing day this year occurred at 1:10 on August 15. During the day, Saturn is located in Capricorn with a brightness of 0.3. On August 14, Saturn will rise from the east part of the east after the sun falls. It will pass the sky around the middle of the night, and it will fall in the south of the west during the sunrise. It can be seen all night.

Although Saturn's Richeng is not a rare phenomenon, the point of each day is the angle of Saturn's aura.

"From the perspective of the earth, during the 30 -year revolving cycle of Saturn, the angle of Saturn's halo we see every year is different. Every 15 years, Saturn halo will face the earth from the maximum angle. We can clearly see Saturn very clearly. The 'big straw hat'; every 15 years, when the side of the Saturn halo is facing the earth, we will see that the halo is disappeared. 'At present, the angle of Saturn's halo is smaller year by year, and by 2025 On the month, the side of Saturn halo will be facing the earth. Therefore, we can still see a small part of Saturn's halo now. "Yang Jing said.

Saturn halo close -up. (Picture Source of the National Aeronautics and Space Administration)

On this day, the timing of observation is not limited to the day of the sun, and the effect of observation is not much different within one month before and after. "In addition to observing Saturn's body with the naked eye, interested public can also use the binocular telescope or small astronomical telescope for observation. About 80 mm caliber astronomical telescope can enjoy the charming aura of Saturn." Yang Jing said.

Planning: Liu Xinhui

Reporter: Zhou Runjian

Xinhua News Agency's domestic and Xinhua News Agency Tianjin Branch joint production

Produced by Star Studio

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