There will be a total lunar eclipse for many more years, and a total eclipse will be once every few

According to the Guangdong Astronomical Society yesterday, the total lunar eclipse (red moon) that occurred this time lasted only a few minutes. It was the shortest total lunar eclipse in 134 years. If you miss this time, you will have to wait until 2018 next time.

The last total lunar eclipse (Red Moon) with the shortest duration occurred at 1:09 a.m. on December 6, 1881 (the 15th day of the 10th lunar month) and lasted less than 60 seconds. The maximum eclipse of the total lunar eclipse can be witnessed in our country.

According to the information released by the Purple Mountain Observatory, the total lunar eclipse starts at 17:00, which cannot be observed in China at this moment, and the "red moon" can only be observed in China for a minute. The first wane is at 18 o'clock (the moon just touches the earth's umbra); The eclipse is at 19 o'clock (the red moon, i.e., the moon happens to be all in the earth's umbra); It was even 20:00 p.m2 points (the center of the Moon and the center of the Earth's umbra are closest to each other); The light is 20 o'clock (the moment when the moon emerges from the earth's umbra); The circle is at 21 o'clock (when the Moon is completely detached from the Earth's umbra).

The maximum eclipse of this total lunar eclipse is divided into. The eclipse indicates the magnitude of the lunar eclipse, and when the eclipse is less than 1, it is a partial lunar eclipse; When the eclipse is equal to or greater than 1, it is a total lunar eclipse. The larger the eclipse, the longer the total lunar eclipse will last.

This total lunar eclipse is also the best observation conditions in China since December 10, 2011. In addition to Heilongjiang, Jilin, Liaoning and Taiwan, and other parts of the east of China, where the "initial loss" can be seen, the rest of the western regions, including Guangzhou, Hong Kong, etc., the moon is "eclipsized", that is, the moon is "broken" when it rises in the east.

The next total lunar eclipse that can be seen across the country will occur on the night of January 31, 2018, when the total lunar eclipse will be the largest and last for 76 minutes.

3 years later. Specifically, January 31, 2018.

Total solar eclipses occur twice every three years, an average of once a year and a half. However, if you stay in the same place and do not move, it can only be observed once every 370 years on average for a city or a region, so there is a saying that it happens once in 370 years.

But in fact, the "once in 370 years" statement is not very rigorous, because the total solar eclipse will be affected by the orbit of the sun and the moon, the rotation of the earth and other factors. It's not that there was a total solar eclipse somewhere today, and that the sedan chair would reappear in the same place 370 years from now. Globally, total solar eclipses are a common astronomical phenomenon that occurs twice every 3 years.

The total solar eclipse zone is no more than 300 kilometers wide on Earth and only a few dozen kilometers at its narrowest.

A total solar eclipse is a type of solar eclipse, an astronomical phenomenon in which the sun's rays are completely obscured by the moon in parts of the Earth. Total solar eclipses are divided into five stages: initial loss, eclipse, eclipse, regeneration, and recovery. Since the Moon is smaller than the Earth, only people in the moon's umbra can see a total solar eclipse.

Folks call this phenomenon the Tengu Eclipse Day.

A total solar eclipse occurs because the Sun is close to a point where the Moon's orbit meets the Earth's orbit, and at the same time the Moon is at the farthest point from that point. That is, the linear propagation of light.

The last total solar eclipse in China occurred on July 22, 2009, and the next one will occur on March 20, 2034, in the mountainous areas of northern Xizhizang, but it is basically a no-man's land. In addition, on September 2, 2035, there will be another total solar eclipse in northern China, lasting 1 minute and 29 seconds.

Sometimes, there are up to 5 solar and 2 lunar eclipses in a year. Sometimes, the sun and moon can occur four and three times a year, respectively; Solar eclipses occur at least twice a year, and lunar eclipses may not occur once a year. Half a month after a solar eclipse, a lunar eclipse is possible.

In short, it happens every year. However, since solar eclipses can only be seen in certain areas during the day, and lunar eclipses can be seen by half the world at night, it seems that there are many more lunar eclipses than solar eclipses. Some people don't see a solar eclipse once in their lifetime, and some people see all the solar and lunar eclipses in half a month.

Solar and lunar eclipses follow the eclipse year, which is the Salo cycle, which cycles once a year.

So solar and lunar eclipses are regular. But it's not a perfect coincidence with an integer year. Even if you calculate the date and time of a solar or lunar eclipse, it may be different from the last one, because the distance between the moon and the earth may be affected by the influence of planets and stars, such as a total solar eclipse becoming a solar eclipse of hail and so on.

Each solar eclipse lasts up to 2 hours and each lunar eclipse lasts up to 3 and a half hours.

The cause of the eclipse is the intersection of the ecliptic and the white way, and as long as the intersection point is in a straight line with the Sun and the Earth, and the Moon is moving nearby, the eclipse may occur, and this time is called the eclipse season.

The eclipse season is 36 days, which covers the length of a synodic month, so a solar eclipse is bound to occur during the eclipse season, and if the circumstances are exceptional, it can occur twice. There is a feeding season every six months. However, sometimes there are two half-eclipses in a year, because the yellow and white nodes are affected by the sun's gravity and move clockwise, so the eclipse year is 19 days shorter than the sidereal year.

So in exceptional cases, there will be two complete and one incomplete season, or two incomplete and one complete season. The former will cause 5 solar eclipses and 2 lunar eclipses; The latter may be 4 times, 3 times.

A total lunar eclipse occurs once a year or so, and the specific time is to split every 14 months, but it is not always visible.

in the lunar calendar. Ten.

5. 16. The moon moves in the opposite direction to the sun. At this time, if the center of the Earth and the Moon are roughly in the same straight line, the Moon will enter the Earth's umbra and produce a total lunar eclipse.

During a lunar eclipse, for the Earth, the direction of the Sun and the Moon differs by 180°, and since the orbits of the Sun and the Moon in the sky, called the ecliptic and the white path, respectively, are not on the same plane, but have an intersection angle of about 5°, only the Sun and the Moon are located near the two intersections of the ecliptic and the white path, respectively, and have a chance to form a straight line and produce a total lunar eclipse.

In 2022, there will be two lunar eclipses around the world, both of which are total lunar eclipses, one on May 16 and one on November 8. On May 16, it will be visible in the Pacific Ocean (except the northwest), eastern Oceania, southern North America, South America, the Atlantic Ocean, southwestern Europe, Africa, the southwestern Asian Pole, the southwestern Indian Ocean, and Antarctica. The whole process lasted 5 hours and 21 minutes, and the total eclipse phase (from eclipse to light) lasted 1 hour and 26 minutes.

The longest total lunar eclipse in 11 years

It seems that it has only appeared for more than 2,000 years, so who knows what year it will be next time.