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Because on this day the Sun, the Earth, and the Moon are in a straight line. The Earth blocks the sun's rays between the Sun and the Moon.
The Moon does not reflect the sun's rays, so there is a total lunar eclipse.
Pick me. 111
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No way? Generally speaking, a lunar eclipse occurs on the 15th or 16th day of the lunar calendar, and a solar eclipse generally occurs on the first or second day of the lunar calendar. Won't it just appear on the fifteenth?
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Generally, it is the fifteenth and sixteenth of the lunar calendar, not the fifteenth.
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Accidents The moon sometimes makes mistakes.
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Lunar eclipses generally occur on the 15th or 16th of each month in the summer calendar Total lunar eclipse occurs every 14 months, but it is not always visible, and globally, total solar eclipses are a common astronomical phenomenon that occur 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.
Based on the historically valid records of total solar eclipses, for a city or a region, it can only be observed once every 370 years on average, hence the saying "once in 370 years".
However, the statement that "it occurs once in 370 years" is also not rigorous enough. Because a total solar eclipse will be affected by the orbit of the Sun and Moon, the rotation of the Earth, and other factors. It's not that a total solar eclipse happened somewhere today, and it will definitely reappear in the same place 370 years from now.
In the 1034 years from 975 to 2009, Wuhan experienced a total of 4 total solar eclipses
The first time was May 10, 1575, and the duration was 4 minutes and 23 seconds. The second time was on the afternoon of December 3, 1641, lasting 2 minutes and 04 seconds. The third time September 21, 1941, lasted 3 minutes 05 seconds.
The fourth time, which is today, starts at 9:23 a.m. and lasts about 5 and a half minutes, which is the longest time.
** It is called a "once-in-500-year eclipse" and a "great solar eclipse of the century" because it is an astronomical spectacle.
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On July 28, 2018, the day of the total lunar eclipse.
In addition to the extreme western part of our country
In addition to the total process of lunar eclipse, most of the DAO areas can see the "eclipse moonset".
The total lunar eclipse will occur on July 28 from 3:30 a.m. to 5:14 a.m. Beijing time. The total eclipse phase will last up to 1 hour and 44 minutes, and since the total lunar eclipse only starts in the middle of the night, only the western part of China can see the whole process, while people in the eastern part of China can watch the "eclipse moonset".
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This year, there are two total lunar eclipses that shook the world, the first was at the end of January this year, and the second was in the early morning of the 28th of this month. So do you know how long this total lunar eclipse is? Next byKnowledge of horoscopesLet's tell everyone, togetherAstronomical phenomenaCheck it out!
"The Full Moon of July 2018 presented the longest total lunar eclipse of the 21st century on the night of July 27-28, 2018, lasting up to 1 hour and 43 minutes," space experts said. ”
The total lunar eclipse will occur from 3:30 a.m. to 5:14 a.m. Beijing time on July 28. Compared to the "total lunar eclipse" that occurred in the first half of the night on January 31 this year, the total eclipse phase will last for 1 hour and 44 minutes, which is longer than the total lunar eclipse at the end of January. However, since this total lunar eclipse only began in the middle of the night, only the western part of China can see the whole process, while people in the eastern part of China can watch the "eclipse moonset".
During a lunar eclipse, the moon will appear deep red to orange, and the partial lunar eclipse will occur before the longest total lunar eclipse of the century, lasting 1 hour and 6 minutes per slip. "So, from start to finish, it takes the moon almost 4 hours to pass through the Earth's shadow. ”
During a lunar eclipse, when the Moon passes over the shadow cast by the Earth, the Moon appears crimson to orange without disappearing completely. This singular effect is known as Rayleigh scattering, and it filters out green and purple bands of light from the atmosphere during a lunar eclipse.
Most of China will only see the first half of the total lunar eclipse. The penumbral phase of this lunar eclipse will start at 01:14 a.m. EDT
47 At the beginning of the year, you will gradually notice that the left side of the full moon is beginning to turn gray; At 02:24:27, the first wane, the partial lunar eclipse phase begins, and you will clearly see a gap on the left side of the moon; As the gap gradually widens, to 03:
At 30:15, the eclipse finally arrived, and the sunlight on the entire moon disappeared, and the moon glowed bronze; 04:21:
44, the eclipse is very serious, this is the darkest moment of this total lunar eclipse, even darker than the previous total lunar eclipse in 2018; By 05:13:11, the light was born, and the sunlight began to illuminate the upper left of the moon.
However, for eastern China, the moon is about to set and the sun is about to rise. Only parts of the far west can be seen at 06:19:
00 rounds and 07:28:38 penumbral eclipse.
Coincidentally, when this total lunar eclipse occurred, the Moon also happened to be at its farthest point from the Earth, more than 10,000 kilometers away from the Earth. This is the farthest from Earth among the 13 Full Moons in 2018, and it can also be called the smallest Full Moon. In addition, when the total eclipse occurs, Mars, which is at opposition, will appear not far to the south of the bronze moon, which should be very beautiful.
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The direction of the Earth's revolution is from west to east, and the direction of the Moon's revolution is also from west to east. The conditions for a lunar eclipse to occur are the three positions, with the Earth in the middle, the Sun on the left, and the Moon on the right. The time is from 19:33, which means that the lunar eclipse begins at the time of the sunset, and the sun sets in the west, and the moon and the sun are in the opposite direction relative to the earth, so they are in the east.
The total lunar eclipse is at 18:00, according to the direction of the Earth's lunar rotation, Shanghai just entered the night, and the moon was in the dark night, so the lunar eclipse was also just seen, that is, near the horizon.
This requirement has spatial imagination, and the pure text is not good to tell you about the big hail solution, I don't know if Wang Fangliang can understand this explanation.
August 28 is the 240th day of the Gregorian year (241 in leap years), 125 days before the end of the year. >>>More
Total solar eclipse. It is a type of solar eclipse, that is, the astronomical phenomenon in which the sun is completely obscured by the moon. If the sun, the moon. >>>More
In a word, it is caused by the revolution of the earth around the sun and the revolution of the moon around the earth. When they move to a particular position, they cause solar and lunar eclipses.
Why is there a lunar eclipseAs follows:
1. The formation of a lunar eclipse From a physical point of view, the principle is that light propagates in a straight line in the same uniform medium, the sun, the earth, and the moon form a straight line positional relationship, and the moon enters the earth's umbra, which becomes the lunar eclipse we usually see. >>>More
The principle of a lunar eclipse. 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. If only part of the Moon enters the Earth's umbra, a partial lunar eclipse occurs. >>>More