How to record the change of moon brightness during the eclipse?

Total lunar eclipse is a kind of lunar eclipse. When the moon, the earth and the sun are completely in a straight line, the whole moon walks into the shadow of the earth, and most of the surface of the moon is dim, which is a total lunar eclipse. 10 The best observed total lunar eclipse in China was staged on 20th11year1February 10. By then, as long as the weather is fine, almost all areas in China can enjoy the charming sight of a "red moon" hanging high in the night sky. Related celestial bodies 20 10 total eclipse 20 1 1 total eclipse June1June1February 10 total eclipse is a kind of schematic diagram of total eclipse. When the whole moon completely enters the umbra of the earth, it will appear. During the eclipse, the direction difference between the earth's sun and the moon is 180. Because the orbits of the sun and the moon in the sky (called ecliptic and ecliptic respectively) are not on the same plane, their intersection angle is about 5, so only when the sun and the moon are located near the intersection of ecliptic and ecliptic respectively, they can form a straight line and produce an eclipse. [1] Eclipses can be divided into three types: partial eclipse, total eclipse and penumbral eclipse. When only a part of the moon enters the umbra of the earth, there will be a partial lunar eclipse; When the whole moon enters the umbra of the earth, a total lunar eclipse will occur. As for the penumbral eclipse, it means that the moon only passes through the penumbral region of the earth, which leads to a slight decrease in the brightness of the moon surface, so it is difficult for the naked eye to see the difference, so it is not noticed by people. The whole process of total lunar eclipse Zhou Xin (Figure 6) Total lunar eclipse When the whole moon enters the umbra of the earth, there will be partial eclipse and penumbra before and after it. Partial lunar eclipse When only a part of the moon enters the umbra of the earth, there will be a penumbral eclipse around it. Penumbral eclipse At this time, the moon just passes through the penumbral region of the earth, which causes the brightness of the moon surface to be extremely slightly weakened, so it is not obvious. Note: there is no eclipse. Because the umbra of the earth is much larger than the umbra of the moon, it also means that in the event of a total lunar eclipse, the moon will completely enter the umbra of the earth, so there will be no annular eclipse. The process of a total lunar eclipse can be divided into five stages: initial loss, eclipse, eclipse, luminescence and last contact. First loss: The moon has just touched the umbra of the earth, marking the beginning of the eclipse. Example of total lunar eclipse: the western edge of the moon is inscribed with the western edge of the Earth's umbra, and the moon just enters the Earth's umbra. Eclipse: The center of the moon is closest to the center of the Earth's umbra. Luminescence: the eastern edge of the moon is inscribed with the eastern edge of the umbra of the earth, and the total solar eclipse phase ends at this time. Final contact: the western edge of the moon is tangent to the eastern edge of the umbra of the earth. At this time, the whole eclipse was over. The degree to which the moon is eaten is called the ecliptic total eclipse, which is equal to the ratio of the farthest distance from the edge of the moon wheel to the umbra of the earth and the meridian of the moon when the eclipse is serious. On the fifteenth and sixteenth days of the lunar calendar, the moon runs in the opposite direction to the sun. At this time, if the centers of the earth and the moon are roughly on the same straight line, the moon will enter the umbra of the earth and produce a total lunar eclipse. If only a part of the moon enters the umbra of the earth, a partial lunar eclipse will occur. When the moon enters the penumbra of the earth, it should be a penumbral eclipse, but it is not called an eclipse because the brightness drops very little, so there are only two kinds of eclipses: total eclipse and partial eclipse. [3] The genetic map of total lunar eclipse is a phenomenon in nature. When the sun, the earth and the moon just or almost run in the same straight line (the earth is between the sun and the moon), the light emitted by the sun to the moon will be partially or completely blocked by the earth, resulting in an eclipse. When an eclipse occurs, the direction difference between the sun and the moon is 180 for the earth, so the eclipse must occur in Wangwang (that is, around the fifteenth day of the lunar calendar). It should be noted that the orbits of the sun and the moon in the sky (called ecliptic and ecliptic respectively) are not on the same plane, but have an intersection angle of about 5, so only when the sun and the moon are located near the intersection of ecliptic and ecliptic respectively can they form a straight line and produce an eclipse. Eclipses can be divided into three types: partial eclipse, total eclipse and penumbral eclipse. When only a part of the moon enters the umbra of the earth, there will be a partial lunar eclipse; When the whole moon enters the umbra of the earth, a total lunar eclipse will occur. As for the penumbral eclipse, it means that the moon only passes through the penumbral region of the earth, which leads to a slight decrease in the brightness of the moon surface, so it is difficult for the naked eye to see the difference, so it is not noticed by people. Observation method Observation method of total lunar eclipse (10 pictures): You can clearly see it after observing it with binoculars or astronomical telescopes for more than 7 times. You can look at it from a height, so you will have a good view. It can also be observed directly with naked eyes, and the following two total lunar eclipses can be observed without any special equipment. Prepare some observation paper before observing the recording process. A big circle was drawn on the paper, and the circle was marked with 0 to 360 degrees counterclockwise. The position of 0 indicates the true north pole of the moon. During the total solar eclipse, draw a sketch of the eclipse every 4 minutes. From this, we can get a group of eclipse pictures of the whole process of total lunar eclipse. Brightness and color During the eclipse, the brightness and color of the lunar surface can be divided into the following five levels: level 0, which is very dim and almost invisible; 1, slightly bright, black and yellow, the details are difficult to distinguish; Grade 2, slightly bright, dark red or brown, with some dark spots in the middle and quite bright outside; Level 3, brick red, you can see the details of the moon, but it is very vague; Level 4, copper red, very bright, very bright outside, slightly blue, you can see big details. When observing the total lunar eclipse, it is necessary to judge the brightness and color scale of the lunar surface and record it. At the same time, record the weather at that time. Total lunar eclipse photometric classification in Tanjung L=0 Dark black (the moon can hardly be seen by naked eyes when the eclipse is heavy) Observed total lunar eclipse L= 1 Black with gray or brown (details are difficult to distinguish) L=2 Dark red or rust red (the center of the umbra is dark black but the periphery is bright) L=3 Brick red (the edge of the umbra is bright or yellow) L=4 Bright orange red (bright umbra) 1 You need a telescope with a diameter of 5cm to 15cm to see the details. 0 requires a telescope with a diameter of 15cm or more to see the details. These two data are very important, so it is necessary to write these two parameters into the report when observing the total lunar eclipse formally. The total lunar eclipse has a certain influence on artificial celestial bodies powered by solar panels irradiated by the sun. For example, Chang 'e-1, China's moon-orbiting satellite, which was launched from June 5 to October 24, 2007, faced the test of the first total lunar eclipse at the end of February 2008 to cope with the temporary "energy" crisis and low temperature test. When the total lunar eclipse occurs, the whole moon and satellites around the moon will "drill into" the huge figure of the earth, and it is estimated that there will be no sunshine for 3-4 hours. Because Chang 'e-1 is mainly powered by solar panels irradiated by the sun, although the satellite is equipped with batteries, the batteries can only guarantee short-term power supply. During this period, individual scientific equipment on the satellite will be temporarily shut down, so that the "Chang 'e" in space can "save food and clothing" as much as possible to ensure that it can tide over the difficulties. After the eclipse, control began again. Generally speaking, the eclipse has little effect on the work of Chang 'e-1 satellite. Editing this history In ancient times, people did not know the scientific truth about the occurrence of solar eclipse, and their fear of solar eclipse was no less than that of lunar eclipse. It is said in foreign countries that Columbus sailed to Jamaica in South America at the beginning of the16th century, and there was a conflict with the local aborigines. Columbus and his sailors were trapped in a corner, without food and water. The situation is very critical. Columbus, who knew something about astronomy, knew that there would be a total lunar eclipse that night. He immediately shouted at the total lunar eclipse: "No moonlight without food!" " In the evening, Columbus's words came true, and there was no moonlight. When the natives saw this scene, they were afraid, so they quickly made peace with Columbus. The solar eclipse in Mesopotamia in 2283 BC was the earliest in the world, followed by that in China in 1 136 BC. Eclipses have been promoting the development of human understanding. As early as 188 1 years ago, Zhang Heng, an astronomer in Han Dynasty in China, made clear the principle of lunar eclipse. [4] In the 4th century BC, Aristotle saw that the shadow of the earth was round from the solar eclipse, but inferred that the earth was spherical. Alistair, an ancient Greek astronomer in the 3rd century BC, and Hipparchus in the 2nd century BC both proposed to measure the relative size of the Sun-Earth-Moon system through solar eclipse. Iba Valley also proposed to observe the lunar eclipse in two distant places at the same time to measure geographical longitude. In the 2nd century AD, Ptolemy used the ancient lunar eclipse records to study the movement of the moon, and this method has continued to this day. Before the appearance of rockets and artificial earth satellites, scientists have been exploring the atmospheric structure of the earth by observing eclipses. The earliest lunar eclipse was recorded in Mesopotamia in 2283. In ancient China and Africa, people thought that the lunar eclipse was "Tengu swallowing the moon", and it was necessary to beat gongs and drums to drive Tengu away. In the Han Dynasty, Zhang Heng had discovered some principles of lunar eclipse. He thinks that the earth walks in front of the moon and blocks the sunlight. "Day in a hurry, light often source, hidden in the ground. It is called darkness, the stars are faint, and the moonlight is eclipsed. " Aristotle in the 4th century inferred that the earth was round according to the circle of the earth's shadow seen during the solar eclipse. Aristak, an ancient Greek astronomer in the 3rd century, and Alistair in the 2nd century both proposed to measure the size of the sun, the earth and the moon by solar eclipse. Editor's note: In ancient times, there was a son named "Mulian". Born a good Buddha, a kind person. She is very filial to her mother, but Mulian's mother, as a queen, is irritable and likes and dislikes. On one occasion, Manglietia's mother suddenly had a whim and came up with a bad idea: monks read Buddha and become vegetarians. We should play tricks on them and eat dog meat. She ordered to make 360 dog meat buns, saying they were vegetarian buns, and they were going to the temple to give them. Mulian knew about it, advised his mother not to listen, and sent someone to inform the abbot of the temple. The abbot prepared 360 vegetarian steamed buns. Hidden in every monk's cassock sleeve. Mulian's mother came to give alms and gave each monk a dog meat steamed bread. Before the meal, the monk recited the Buddha and replaced the dog meat steamed bread in his sleeve with vegetarian steamed bread before eating. When Manglietia saw that all the monks had eaten her steamed bread, she clapped her hands and said with a smile, "Monks eat meat today! Monks eat dog meat steamed buns! " The abbot folded his hands and repeated, "Amitabha, sin, sin!" " "Afterwards, 360 dog meat steamed buns were buried in the soil behind the temple. The jade emperor in the sky was very angry when he learned about it. Will lay Manglietia's mother down to eighteen levels of hell, become a vicious dog, and will never be reborn. Manglietia was a dutiful son and learned that her mother had gone to hell. He practiced day and night and finally became a Buddha. In order to save his mother, he used Zhang Xi to open the door of hell. The mother of Manglietia Manglietia and all the evil spirits escaped from hell and were reincarnated to make trouble on earth. The Jade Emperor was furious and made Manglietia descend to earth to devote herself to Huang Chao. Later, "Huang Chao killed eight million people", and the legend came to collect these evil spirits who escaped from hell. [5] The mother of the total lunar eclipse turned into a vicious dog. After escaping from hell, she hated the jade emperor and went to heaven to get even with him. She couldn't find the jade emperor in the sky, so she chased the sun and the moon, trying to swallow them and turn heaven and earth into a dark world. This evil dog chases and chases day and night! She chased the moon and swallowed it; Catch up with the sun and swallow it in one gulp. The evil dog that Mulian's mother turned into was most afraid of gongs and firecrackers, and the sun and moon swallowed by the evil dog would spit it out again. After the sun and the moon were rescued, the sun, the moon and Hui Qi started running again. Bad dogs don't want to catch up again, so there are eclipses in the sky again and again. Folks call it "Tengu eats the sun" and "Tengu eats the moon". Up to now, during solar and lunar eclipses, many people in cities and rural areas still have the custom of beating gongs and drums and setting off firecrackers to drive away Tengu. The related celestial bodies started from Guo Pu in the Eastern Jin Dynasty, and the "Tiangou" and "Tiangou" recorded in Shan Hai Jing were interpreted as Tiangou stars. Guo Pu quoted Zhou Shu as saying in his annotation: "Tiangou stops at the ends of the earth, and Zhu Tian in the corner is a meteor, which is dozens of feet long. Its speed is like the wind, its sound is like thunder and its light is like electricity. When the Seven Kingdoms of Wu Chu rebelled, it was also the dog that crossed the State of Liang. Scholars in the Qing Dynasty pointed out in Notes to the Classic of Mountains and Seas that "Tiangou" and "Tiangou" in the Classic of Mountains and Seas are both animal names, and "Guo's notes take Tiangou as the star, which seems to be wrong". It is precisely because of Guo Pu's wrong annotation that "Tiangou" and "Tiangou" rose to heaven as Tiangou stars, and the total lunar eclipse (Figure 8) became the Tiangou god worshipped by the people. Dog star, also known as dog star, is the Sirius in Su Shi's Looking Northwest and Shooting Sirius. Dog star is a brighter star in the sky, only the sun, moon, Venus, Jupiter and Mars are brighter than it. When it is close to the horizon, it often flashes colorful light. Guo Pu's description accords with this characterization. Some people say that the dog star is the dog's nose, while others think it is the dog's eyes. Dogs are people's good companions, but "Tiangou" is a frightening evil spirit. It looks unlucky, with injuries, car accidents, operations and other mass casualties. According to Bi Yuan's "Continuing to Treat Mirrors" in the Qing Dynasty, in six years (1346), the secretary said: "The heavenly dog star fell to the ground and devoured the world for five thousand days, starting from Chu, spreading all over Qi and Zhao, and ending in Wu, so it is better to be bright in Guangdong and Guangxi. "After the world chaos, everything is as said. Edit this paragraph: total lunar eclipse 20 10/0,20 10/0,12,21. There will be a wonderful total lunar eclipse in the winter sky, and many people want to witness the grand occasion of "Tiangou swallowing the moon". Astronomical experts said it was a pity that it was difficult for the public in China to film the "Sugar-Coated Berry" which recorded the whole process of the solar eclipse. Zhao Zhi Heng, an expert in astronomy education in China, said that the total lunar eclipse occurred at 2 1, and the moon will enter the penumbra at 2 1 13: 28 Beijing time. 14: 32, the eclipse officially started, but at this time, for the whole of China, the moon was still below the horizon and could not be observed. At 16: 08 and 17: 00, a severe lunar eclipse occurred, that is, the moon entered the deepest part of the earth's umbra during the total lunar eclipse, which can be observed in a few areas of China. In some areas, a dark red moon can be seen rising from the east. 16: 54, Mitsudeki, the umbra where the moon begins to leave the earth. At this time, the moon has risen in the northeast, northern North China, Shandong Peninsula and other places, and the public in these areas can find an unobstructed place in the northeast to enjoy the partial lunar eclipse. At this time, you can continuously take photos of the moon gradually leaving the umbra of the earth. At the last contact 18: 02, the moon completely left the umbra of the earth, and the total lunar eclipse came to an end. The maximum eclipse of this total lunar eclipse is 1.25438+0. Zhao Zhi Heng said that it is difficult for observers in China to observe the whole process of the total lunar eclipse. It happens during the daytime in China, so the public can only wait until after sunset to enjoy the partial eclipse. " Although the observation conditions of this total lunar eclipse are not ideal for China, there will be two total lunar eclipses in China in 20 1 1 year, on June 16 and February 10, respectively, in which China can see the whole picture of the total lunar eclipse on June 12. The interested public may wish to use this observation as a preview to prepare for next year. "Zhao Zhi Heng warned. [6] The total lunar eclipse of 20 1 1 year and the two total lunar eclipses of 20 1 1 year on June 6 were edited, and the observation conditions in China were all good. In particular, February 10 and 10 were rare total lunar eclipses in China in recent years. June 16 is a good opportunity for the public to practice observing the total lunar eclipse. Globally, the total lunar eclipse on June 16 can be observed in most areas of Asia, Oceania, Europe, Africa and Antarctica. Among them, the areas that can be seen all the way are mainly concentrated in western Asia and eastern Africa, and a large area of lunar eclipse can be observed in eastern China. 20 1 1 the visible area map of the total lunar eclipse in June [7] Usually, the public uses the eclipse to indicate the depth of the moon entering the umbra of the earth during the eclipse. To be precise, it is the ratio of the sum of the angular radius Re of the Earth umbra and the angular radius Rm of the moon minus the angular distance L between the Earth umbra and the center of the moon, and then to the angular diameter 2Rm of the moon. In the process of an eclipse, the biggest moment of the eclipse is to eat a lot. First of all, when the total eclipse occurs, the eclipse will be greater than or equal to 1. Moreover, according to the size and distance of the sun, the earth and the moon, the public can calculate that the theoretical maximum food intake of the total lunar eclipse is about 1.85. The maximum eclipse score of this total eclipse is 1.705, which is close to the theoretical extreme value, and it is the largest total eclipse in recent years. The bigger the food, the longer the total solar eclipse lasts. On June 16, the total lunar eclipse will last 1 hour 4 1 minute, with the eclipse at 3: 22 and the light at 5: 03. Although there is plenty of time, the actual observation will be very tense. Take Beijing as an example. The sun rises at about 4: 50 that day, so the moon will set before birth. And more than an hour before sunrise, the sunlight scattered by the atmosphere will brighten the background sky. However, when the food is very heavy (4: 00 Beijing time, 13), the height of the moon's horizon is only more than 5, so the already dark red moon will be even less obvious. In Beijing, the lunar horizon during the eclipse is still close to 13. Although it is still half an hour away from astronomical dawn, it will not be too bright. Therefore, for friends who want to shoot the total lunar eclipse, everyone should make full preparations and race against time to observe. The whole process of the lunar eclipse in June 20 1 1 [8] Good weather conditions are the prerequisite for successful observation of the total lunar eclipse. Of course, in addition to paying attention to the weather forecast, we should also choose a suitable observation site. For the eastern part of China, it is best to observe the lunar eclipse in the southwest where there are as few obstructions as possible. Although the low horizon of the moon has a negative impact on observation, it also provides a valuable opportunity for everyone to photograph the total lunar eclipse with scenery. Therefore, it is particularly important to choose a suitable place for observation. Places of interest and landmarks are all good materials. If you want to take a photo of the total lunar eclipse for people nearby, you can use a flash to fill the light appropriately. This eclipse can be observed in many countries in the world, including China. The total lunar eclipse entering the umbra of the earth will not end until the moon falls below the horizon, and there will be a scene of falling with food. The time for China to watch this total lunar eclipse is: 2: 23 am at the initial loss; The food is 3: 22; At 4: 00, the food intake was 13 and the maximum food intake was1.705. 5: 03; Last contact was at 6: 03. The sunlight reflected by the moon is refracted through the earth's atmosphere, which may make people on earth see red, brown and "black" moons when observing the moon. When sunlight reflected by the moon enters the earth's atmosphere, it will backscatter blue light, which can make it appear red when observed on the earth. According to the report, the moon seen by many people on earth this time may be blood red, and the red moon will last for about 100 minutes. Because the sunset in Britain won't end until around 9 pm 19 pm, British astronomy enthusiasts can't see the initial stage of the solar eclipse. 1 1 The longest total lunar eclipse in years will occur on 16 at 2: 23 am on June 23rd, and the moon will "blush" at around 4 o'clock. Wang Sichao, a researcher at Nanjing Purple Mountain Observatory of Chinese Academy of Sciences, said that for Sichuan, the weather will be the key factor for observation. As long as the weather is fine, the whole process can be seen in parts of western and southwestern China. [9] At about 6: 24 pm on June 15 (2: 24 am on June 16, Beijing time), the longest total lunar eclipse will occur since 2000, and people in half of Africa, the Middle East, Central Asia including China, Western Australia and many other parts of the world can observe this total lunar eclipse. The total lunar eclipse entering the umbra of the earth will not end until the moon falls below the horizon, and there will be a scene of eclipse. When can China watch the total lunar eclipse? The eclipse scenes shot in Islamabad are as follows: the first loss is at 2: 23 am; The food is 3: 22; At 4: 00, the food intake was 13 and the maximum food intake was1.705. 5: 03; Last contact was at 6: 03. It is reported that the lunar eclipse on June 16 will be the longest total lunar eclipse since 2000. The sunlight reflected by the moon is refracted through the earth's atmosphere, which may make people on earth see red, brown and "black" moons when observing the moon. When sunlight reflected by the moon enters the earth's atmosphere, it will backscatter blue light, which can make it appear red when observed on the earth. According to the report, the moon seen by many people on earth this time may be blood red, and the red moon will last for about 100 minutes. Because the sunset in Britain won't end until around 9 pm 19 pm, British astronomy enthusiasts can't see the initial stage of the solar eclipse. [10] 2011June 16 at the scene of the solar eclipse in Islamabad. If the weather is clear, astronomers in Europe, Africa, Central Asia and parts of Australia can watch the total lunar eclipse. This is the first total lunar eclipse in 20 1 1 year, and the longest one in recent1/year. 65438+February 10, and the total eclipse time is 5 1 min [1 1] It is reported that this total eclipse is the best in China after 2006 1 year/month. Wang Sichao, a researcher at the Purple Mountain Observatory of the Chinese Academy of Sciences, said that the good observation conditions are mainly based on two aspects: First, the total lunar eclipse can be observed almost all over China, which is also the biggest feature of this total lunar eclipse; Second, the occurrence time of the total lunar eclipse is suitable for public observation in China, and the whole process of the total lunar eclipse can be appreciated. The total lunar eclipse has several important time points, such as initial loss, heavy food, light and last contact. The first loss of this total lunar eclipse was at 20: 45 on 10, Beijing time, the eclipse was at 22: 06 on 10, and the light was born at 22: 57 on 10, and the last contact occurred at 0: 00 on17. Among them, the stage of total lunar eclipse is from eclipse to light, which means that the most wonderful total lunar eclipse time for observers is 5 1 minute. Su Yi, director of the total lunar eclipse of the Chinese Astronomical Society and a professor at Nankai University, said that the time of the eclipse was very favorable for observation in most parts of China. It not only lasts for a long time, but also happens on Saturday and midnight. In addition, the sunny weather rate is higher in winter, and the atmospheric transparency of February110 total solar eclipse high-definition map is better. If the local weather is clear, you can clearly see the whole process of the eclipse. Why is the moon dark red during the total lunar eclipse? How did the solar eclipse happen? Wang Sichao said that the side of the earth facing away from the sun has a shadow. In the process of orbiting the earth, the moon sometimes enters the shadow of the earth, and the earth blocks the light from the sun to the moon, forming an eclipse. If the moon enters the shadow of the earth as a whole, what happens is a total lunar eclipse. The condition of an eclipse is that the moon must face away from the sun on the earth (the direction of the shadow). This is only possible on the day of "watching" the new moon. Therefore, an eclipse always occurs at the full moon. Of course, most of them don't have eclipses. This is because the yellow latitude of the sun and the moon must be equal to (or close to) the astronomical phenomenon of solar eclipse. During the total lunar eclipse, the moon will not disappear completely, but will appear dark red. Why is this? Wang Sichao explained that sunlight is a mixture of red, orange, yellow, green, blue, indigo and violet light. When sunlight passes through the earth's atmosphere and refracts into the shadow behind the earth, they are scattered and absorbed by tiny atmospheric molecules in the atmosphere. Yellow, green, blue, indigo and violet light waves are relatively short, which are greatly affected by scattering in the atmosphere, and most of them scatter in all directions; Red light has a long wavelength and is not affected by scattering. It can penetrate the atmosphere and refract to the moon hidden behind the earth's shadow. Therefore, during the total lunar eclipse, the moon seen by the public is dark red. Experts suggest shooting "eclipse gourd string" to watch the total lunar eclipse, and it is best to use a small astronomical telescope. Interested citizens can go to the local astronomical society or planetarium and science and technology museum for observation. In addition, the Shanghai Observatory and China Science Network will broadcast the total lunar eclipse live or online, and interested public can pay attention to it. Experts suggest that people who like astrophotography might as well prepare a camera for the total lunar eclipse in advance. When shooting, it is best to use a lens with a longer focal length, fix the camera with a tripod, and appropriately increase the exposure time through cable release. If we can select some distinctive background objects, such as towers and ancient buildings, it will be more ornamental. If you want to shoot the "eclipse gourd string", you need to choose a camera and a wide-angle lens that can be repeatedly exposed in the same picture, and prepare a tripod fixed camera, and calculate in advance how long it will take to shoot once (usually 15 minutes -20 minutes), and you can shoot. According to reports, this year is the high incidence year of total lunar eclipse in China, with two total lunar eclipses, which were staged on June 16 and February 10 respectively. However, after 20 1 1 year, from 20 12 to 20 17 years, the public in China can only enjoy two total lunar eclipses, which occurred in 20 14 years1October 8 and 20/kloc-respectively. However, in 20 18, China will usher in another year of high total lunar eclipse. Like 20 1 1, the public in China can also enjoy two total lunar eclipses in this year, which occurred on 1, 3 1 and July 28th respectively.