On the afternoon of summer solstice on June 21, the astronomical landscape of annular eclipse was staged in China. This is the first time that China has witnessed an annular eclipse in eight years. If we miss this opportunity to watch it in China, it will take another ten years (it will be reappeared on June 1, 2030).
This annular eclipse is also known as the golden annular eclipse. The sun will cover more than 99% of the area, leaving only a circle of Phnom Penh, which is very rare. According to astronomers, this annular eclipse is the most anticipated astronomical phenomenon in 2020.
According to CCTV financial report:
According to astronomical prediction, on June 21, the annular eclipse will first appear in Africa and enter China after successively appearing in the Arabian Peninsula, Pakistan, India and other countries. In China, there are parts of Tibet, Sichuan, Chongqing, Guizhou, Hunan, Jiangxi, Fujian, Taiwan and other places where annular eclipse can be observed.
Astronomical experts predict that the maximum eclipse score of this annular eclipse can reach 0.997. The closer the number is to 1, the more parts of the sun will be blocked. For example, in the area where the annular eclipse belt passes in Western Tibet, most of the suns light may be blocked by the moon. The sun will hang in the air like a beautiful golden ring, and the scenery will be very spectacular.
The eclipse of June 21 will start at different times. In the case of Ali Region in Tibet, the initial deficit will occur at about 13:02, the food deficit at 14:45 and the recovery at 16:29. In the eastern region, such as Xiamen, the initial loss is about 14:43, the food is 16:10, and the recovery time is 17:24. In addition, the width of the annular eclipse zone is only about 20 kilometers. Only when people are in the area where the annular eclipse zone passes, can they see the most perfect landscape of the annular eclipse, while in other areas of China, only partial eclipses of different degrees can be seen.
How does solar eclipse happen?
In short, a solar eclipse is an astronomical phenomenon formed when the moon moves between the earth and the sun and blocks part of the sun. When the moon moves around the earth, if the shadow of the moon falls on the earths surface, we can see that part or all of the sun is covered by the moon, and then we will see the solar eclipse.
How does an annular eclipse occur?
Sometimes the moon is too small to cover the whole sun, and an annular eclipse will occur. The size of the moon is determined by its elliptical orbit. When the moon moves around the earth, the distance between the earth and the moon varies from 363000 km to 406000 km. Nearly 13% of the distance variation makes the moon appear different sizes in the sky.
If we look down from space, we will see that the shadow of the moon is not long enough to reach the earth. Instead, the penumbra is projected onto the earth. The path of penumbra is called the annular eclipse zone. If you happen to be on this track, you will see the solar eclipse with the halo around the moon.
Please protect your eyes when enjoying the astronomical landscape!
As a child, you may have used a magnifying glass to light a match, of course, with the help of the focusing principle of the lens. We have a lens in our eyes. If you look at the sun, the lens will focus the sun on your retina and cause damage. If the light is too strong, it will even kill the cells in the retina.
Some people think that the time of solar eclipse is very short and will not cause harm. In fact, when you feel pain in your eyes, your retina has been damaged. Even if only 1% of the suns surface is visible, it will be 10000 times brighter than the full moon. The human retina is very fragile and irreplaceable, so heres a reminder: safe to watch!
Part of the material comes from: CCTV finance, xinhua.com
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Source: know or not editor: Qiao JunJing_ NBJ11279