Lunar Eclipse How is a solar eclipse formed?

Solar and lunar eclipses are typical examples of light propagating in a straight line in celestial bodies. It is not every time a solar eclipse occurs when the moon moves between the sun and the earth, and two conditions need to be met for a solar eclipse to occur. First, solar eclipses always occur on New Year's Day (the first day of the lunar calendar).

Eclipses are not guaranteed on all new suns, because the Moon's orbit (the white path) and the Sun's orbit (the ecliptic) are not in the same plane. The plane of the white and the plane of the ecliptic have an angle of 5°9. A solar eclipse can occur if both the Sun and the Moon move near the intersection of the white and ecliptic at the New Moon, and the Sun is at a certain angle from the intersection (eclipse limit), which is the second condition to be met.

Since the orbits of the Moon and the Earth are not perfectly circular, and the distance between the Sun and the Moon and the Earth is sometimes near and far, the shadow formed by the sun's rays being obscured by the Moon can be divided into umbra, pseudoumbra (formed when the Moon is far away from the Earth) and penumbra on the Earth. The observer is in the umbra range and can see a total solar eclipse; An annular solar eclipse can be seen in the pseudoumbra range; In the penumbra range, only a partial solar eclipse can be seen.

When a total solar eclipse occurs, it can be divided into five types of eclipse signs according to the position relationship between the circular plane of the moon and the circular plane of the sun: 1. Initial eclipse. The Moon moves faster than the apparent motion of the Sun.

During a solar eclipse, the Moon catches up with the Sun. When the eastern edge of the Moon has just "touched" the western edge of the Sun, it is called the first "exodus", which is the beginning of a solar eclipse. 2 Food. About an hour after the first eclipse, the moment when the eastern edge of the Moon and the eastern edge of the Sun are "intangible" is called an eclipse, which is the beginning of a total solar eclipse, when the Moon obscures the entire Sun; 3 Food.

It is the time when the sun is eclipsed deepest, and the center of the moon moves to the closest to the center of the sun; 4 Shine. The moment when the western edge of the moon and the western edge of the sun are "intangible" is called shengguang, which is the end of the total solar eclipse; It generally takes only two or three minutes from food to light, and the longest is not more than seven and a half minutes; 5 Round. About an hour after the light is born, the western edge of the Moon and the eastern edge of the Sun "touch" each other, which is called a recircle, and from this point the Moon is completely "detached" from the Sun, and the eclipse ends.

It's all the sun, the earth, the moon, and the three stars in a line.

Solar eclipse: The moon is between the sun and the earth, and the solar eclipse is the shadow of the moon.

Lunar eclipse: The earth is between the sun and the moon, and the lunar eclipse is the shadow of the earth.

A solar eclipse is the movement of the moon to the middle of the sun and the earth, the three are exactly in a straight line, the moon blocks the light of the sun to the earth, and the black shadow behind the moon falls exactly to the earth, the lunar eclipse is when the moon moves into the shadow of the earth, the part that can be illuminated by the sun's rays, part or all of it cannot be illuminated by direct sunlight, so that the observer located on the earth cannot see the ordinary moon phase.

For solar and lunar eclipses, in simple terms, a solar eclipse occurs when the sun's light is blocked by the moon, and a lunar eclipse occurs when the sun's light hitting the moon is blocked by the earth.

In folklore, solar eclipses are called tengu eclipse days, and solar eclipses are divided into partial solar eclipses, total solar eclipses, annular solar eclipses, and total annular eclipses.

When a lunar eclipse occurs, the Sun, Earth, and Moon happen to be or almost in the same straight line, and the lunar eclipse must occur on the night of the full moon, and there are three types: total lunar eclipse, partial lunar eclipse, and penumbral lunar eclipse.

The word eclipse is explained as: lunar eclipse yuèshí. (1) When the earth runs between the moon and the sun, the sun's light is blocked by the earth and cannot reach the moon, so a black shadow appears on the moon, which is called "lunar eclipses".

When all sunlight is blocked by the earth, it is called a "total lunar eclipse"; When part of it is blocked, it is called a "partial lunar eclipse".

The word eclipse is explained as: lunar eclipse yuèshí. (1) When the earth runs in the middle of the moon and the sun, the light of the sun is blocked by the earth and cannot reach the moon, so a black shadow appears on the moon, and this phenomenon is called "lunar eclipses".

When all sunlight is blocked by the earth, it is called a "total lunar eclipse"; When part of it is blocked, it is called a "partial lunar eclipse". The phonetic pronunciation is: The structure is:

Lunar (monomeric structure) eclipses (left and right structures). Pinyin is: yuèshí.

What is the specific explanation of the lunar eclipse, we will introduce it to you through the following aspects:

1. Citations and explanations [click here to view the details of the plan].

See "Lunar Eclipse".

2. Chinese dictionary.

When the earth orbits between the sun and the moon, and the three are exactly in a straight line, the earth's shadow obscures the moon, causing a dark shadow on the moon, which is called a lunar eclipse. Also known as a lunar eclipse.

Poems about lunar eclipses.

Post-Lunar Eclipse Poems, I Write Lunar Eclipse Poems", "May Lunar Eclipse Calendar, and Lunar Eclipse Calendar, June New Year's Eclipse", "Lunar Eclipse, June Flame Yard Covers Loss and Depression Steam".

Verses about lunar eclipses.

The eclipse of the moon, you don't know it, but it is like the eclipse of the sun and the moon, but you actually teach the eclipse of the moon and Zhan Zhu.

Idioms about lunar eclipses.

Waiting for the moon in the wind, before the moon and the moon, the moon and the moon are commenting on the spring flowers, the autumn moon steals the chicken, does not eclipse the rice mouse and the silver rodent beetle erodes the ice, the autumn moon supports the thunder and cracks the moon.

Words about lunar eclipses.

Yuedan Commentary: Supporting the Thunder, Cracking the Moon, Moon, Flowers, Spring Flowers, Autumn Moon, Mouses, Rodents, Wind and Rain, Wind and Rain, Erosion of Rats, Erosion of the Moon, Erosion of the Business.

Sentence formation about lunar eclipse.

1. The year of the zodiac sign in which the lunar eclipse occurs is always full of memories of experience.

2. In ancient times, people understood the lunar eclipse as a tengu eating the moon.

3. If you marry on the day of the solar eclipse or the lunar eclipse, you will have six-fingered children, twins or babies without a mouth after marriage, so it is regarded as a taboo.

4. However, the Chinese drew detailed maps of galaxies and completely recorded solar and lunar eclipses, comets, novae, and meteors, which are also useful to astronomers today.

5. Lunar eclipses are often a sign that something will come to an end.

When the sun, the moon, and the earth are in a straight line, the rays of the sun hitting the earth will be blocked by the moon, because when we look at the sun from the earth, the sun is obscured by a huge black shadow, which is an eclipse. Because the diameter of the sun is 400 times larger than that of the moon, there are three phenomena: total solar eclipse, solar partial eclipse, and annular solar eclipse. At the same time, people in other parts of the earth are not in a straight line with the moon and the sun, so the moon will only cover part of the sun, which is called solar eclipses; When the Moon is far away from the Earth, the Moon cannot completely cover the Sun, and a large circular black shadow in the middle of the Sun will be formed, which is called an annular solar eclipse. Eclipse-eclipse occurs periodically, with a cycle of 18 years and days (if there are five leap years in this period, it becomes 18 years and days), and this cycle is called the "saro cycle", which originally meant to be repeated.

When the moon is full, the moon enters the shadow of the earth, and all or part of the moon's surface is trapped in the darkness. Solar and lunar eclipses occur only twice a year when the orbital planes of the Moon and the Earth cross the lines of the two orbits in a direction closer to the Sun.

Lunar eclipses occur more often than solar eclipses, and lunar eclipses take about 2 or 3 hours from start to finish, and lunar eclipses can be seen as long as the moon is visible from anywhere on the earth, so there are more chances of seeing lunar eclipses. In Taiwan, a total lunar eclipse is visible on average about once every three years.