Important astronomical phenomena in June Has the strongest annular eclipse in Phnom Penh come this year?

There are many astronomical phenomena in June, and as one of the most important astronomical phenomena in the whole year, the annular eclipse was also staged in June and will debut on June 2 1 day. This annular eclipse can be observed in China and should not be missed. So here is a detailed introduction of constellation knowledge!

Important astronomical phenomenon in June: annular solar eclipse in Phnom Penh on June 2 1 day, we will usher in the summer solstice solar term. On this day, the sun shines directly on the Tropic of Cancer, and the night in the northern hemisphere is the shortest, so we can watch the stars for less time than in winter. However, an annular solar eclipse will be staged on the day of summer solstice, and the annular solar eclipse belt passes through some parts of southern China, so the partial solar eclipse can be seen all over China, which is also one of the most important astronomical phenomena in the whole year.

In 2020, two solar eclipses will be observed in the world, namely, the annular eclipse on June 2 1 day and the total solar eclipse in the early morning of February 15. For China, the second total solar eclipse occurred in the distant southern hemisphere, and it is easy for us to see the annular eclipse on June 2 1 day.

The sun is 65.438+0.5 billion kilometers away from us, and the moon is much closer, with a perigee of about 363,000 kilometers and an apogee of about 405,000 kilometers. If the moon is far away from us when it blocks the sun, its apparent diameter will be smaller than the sun. If there is a lunar eclipse at this time, the moon can't completely block the photosphere of the sun, and what we see is an annular eclipse.

On June 2 1 day, Beijing time, on the first day of the fifth lunar month, the apparent diameters of the moon and the sun are very close, so the sun will appear very thin and round only when there is an eclipse. We call this annular eclipse, which is very close to the total solar eclipse, "Phnom Penh annular eclipse".

The path of annular eclipse starts from Central Africa in the west and enters China via Arabia, Pakistan and India. The eclipse belt passes through China, Tibet, Sichuan, Guizhou, Chongqing, Hunan, Jiangxi, Guangdong, Fujian and Taiwan Province provinces, and finally ends in the western Pacific. Such a "Phnom Penh solar eclipse" is not common. The next time it will wait until May 9, 2032, it will happen in the South Atlantic, which is difficult to observe.

The thinnest and most spectacular place to eat this time is India, and the observation effect of "Phnom Penh solar eclipse" in Tibet is also good. In Fujian and Taiwan Province provinces in the east, this "circle" is even bigger. The eclipse zone of "Phnom Penh Eclipse" is very narrow, and the time to see food is shorter than that of conventional annular eclipse. In Ali, Tibet, the width of the annular eclipse belt is only 20 kilometers, and it is only 40 kilometers in Fujian and Taiwan Province provinces. The duration of the annular solar eclipse in Tibet is only 40 seconds, and the time to see food near the eastern center line does not exceed 1 minute.

How to observe such a short and spectacular sky phenomenon through the annular eclipse? If you want to observe it, you must arrange your trip in advance. The annular eclipse belt passes through some parts of eastern China, and the traffic is relatively convenient, but the probability of sunny this season is low. The transportation on the Qinghai-Tibet Plateau is inconvenient, but the possibility of good weather is greater. The occurrence time of annular eclipse in different places is also different. It is near noon in the west of China and near evening in the east. For taking photos of annular eclipse, different heights of the sun have their advantages and disadvantages. What needs to be reminded here is that during this annular eclipse, partial solar eclipse can be seen all over China, but attention should be paid when observing. Never look directly at the sun with your eyes. You need to wear special sun observation glasses to watch the solar eclipse.

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