Please explain the two natural phenomena of solar and lunar eclipses

A lunar eclipse is a special astronomical phenomenon in which when the Moon moves to the shadow part of the Earth, the area between the Moon and the Earth will be obscured by the Earth's rays, and a piece of the Moon will be missing. That is, the Sun, Earth, and Moon at this time happen to be (or almost) in the same straight line (the Earth is between the Sun and the Moon), so the light from the Sun to the Moon will be obscured by the Earth. In the case of the Earth, when a lunar eclipse occurs, the direction of the Sun and the Moon will be 180 degrees apart, so the lunar eclipse must occur around the 15th day of the lunar calendar.

It is important to note that since the orbits of the Sun and Moon in the sky (called the ecliptic and white paths) are not in the same plane, but have an angle of about 5 degrees, only if the Sun and the Moon are near the two intersections of the ecliptic and the white path, respectively, will have a chance to join in a straight line and produce a lunar eclipse. A solar eclipse is when the moon circles the earth and turns between the sun and the earth, if the sun, the moon, and the earth are exactly lined up or close to a straight line, the moon blocks the sunlight that shoots to the earth, and the black shadow behind the moon falls on the earth, and the solar eclipse phenomenon occurs. People in the shadow of the moon on the earth began to see the sun gradually weakening, the sun surface was obscured by a round black shadow, when the sky turned dark, all the brightest stars and planets could be seen in the sky, and after a few minutes, the sun gradually appeared from the edge of the moon's black shadow, and began to produce light and recircle.

Since the Moon is smaller than the Earth, only people in the shadow of the Moon can see the eclipse. A total solar eclipse occurs when the Moon blocks all the sun, a partial solar eclipse occurs when part of the sun is occluded, and an annular solar eclipse occurs when part of the sun is occluded. A total solar eclipse lasts no more than 7 minutes and 31 seconds.

The maximum length of an annular solar eclipse is 12 minutes and 24 seconds. In order to delay the observation of the total solar eclipse, an astronomer in France chased the shadow of the moon in a supersonic plane, extending the observation time to 74 minutes. China has the oldest record of solar eclipses in the world, and there have been definite records of solar eclipses more than 1,000 years BC.

What is an "eclipse" - Solar and lunar eclipses - Astronomy (Chinese and English subtitles).

Both solar and lunar eclipses are formed due to the linear propagation of light. So-called"food"It refers to the astronomical spectacle in which a celestial body is completely or partially obscured by another celestial body or its dark shadow. When the Earth is in the middle of the Sun and the Moon, and the Sun's rays hitting the Moon are partially or completely blocked, there will be a lunar eclipse; When the Moon is directly between the Earth and the Sun, and the Sun's rays hitting the Earth are partially or completely blocked, there is a solar eclipse.

Solar eclipse. A solar eclipse, also known as a solar eclipse. In folklore, this phenomenon is called the Tengu Eclipse Day. Solar eclipses only occur at the New Year, when the Moon and the Sun are conjunct.

Solar eclipses are divided into partial solar eclipses, total solar eclipses, annular solar eclipses, and total annular eclipses. You can't look directly at the sun when observing a solar eclipse, otherwise it will cause temporary blindness, and in severe cases, permanent blindness.

Lunar eclipse. A lunar eclipse, also known as 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, resulting in a total lunar eclipse. Lunar eclipses occur at least twice a year around the world.

Solar eclipse: Earth-Moon-Sun or Sun-Moon-Earth (Moon in the middle).

Lunar eclipse: Moon-Earth-Sun or Sun-Earth-Moon (Earth in the middle).

The Sun, Moon and Earth are roughly in a line, and the Moon forms a total solar eclipse in the middle of the Sun and Earth. This phenomenon mostly occurs on the first day of the new month (when the moon phase is the new moon).

The sun, moon and earth are roughly in a line, and the earth forms lunar eclipses (total lunar eclipses, annular lunar eclipses, partial lunar eclipses) between the moon and the sun, and most of them occur in the lunar calendar.

The fifteenth and sixteenth (full moon) moon also moves with the earth around the sun in the process of orbiting the earth.

First of all, it is necessary to understand what a solar eclipse is, a solar eclipse, also known as a solar eclipse, is the movement of the moon between the sun and the earth, if the three are exactly in the same place.

When it is in a straight line, the moon blocks the light from the sun towards the earth, and the dark shadow behind the moon falls exactly on the earth, and the sun occurs.

Food phenomenon.

Both solar and lunar eclipses are formed due to the linear propagation of light.

The specific reasons for this are as follows:

A solar eclipse is between the sun, the moon and the earth in the same straight line, the moon blocks the sun's rays, so that some parts of the earth, even during the day, do not see the sun or only see the mutilated sun, the sun is completely obscured is called a total solar eclipse, and the partially covered is called a partial solar eclipse.

A lunar eclipse is a lunar eclipse in which the earth in the same straight line blocks the sun's rays, causing the moon to become black in a clear night sky.

In ancient China, because people did not understand the cause of the formation of the lunar eclipse, superstitious belief that the occurrence of the lunar eclipse is about to have a big disaster, so in ancient times people called the lunar eclipse "tengu eating the moon", now we know that the solar eclipse and the lunar eclipse are a natural phenomenon of the linear propagation law of light. ,8,Because the sun, the earth and the moon are always doing cyclical movements (detailed in junior high school science books),0,

Li Perch studied Western knowledge, he said: "The moon originally had no light, but it was brightened with the help of the sun's light. On the fifteenth, it was in a line with the earth and the sun, and the moon saw that the earth could not see the sun, and could not borrow the sun's light, so there was no light.

Someone said, "Not like that. There was a year when the sun was about to go down.

The moon rises in the east, the sun in the west is not gone, people see it, then the earth has not tasted the sun and the moon, why do the clouds see the sun and the sun? ”

He said, "You don't see the moon, but the shadow of the moon, which never came out of the earth." What is used to verify it?

Now try to put a penny in a vessel, but before it is gone, you don't see the money, and when you see it when it is full of water, you know that what you see is not money, but the shadow of money. When the sun is about to set, the east is desolate and cool, and the sea air rises, as if it is water, and its reflection is also the shadow of the moon. If you must think that the moon in the east is the true moon.

It's the money on the surface of the water as real money, right? Isn't it? ”

For if a fisherman sees a fish floating on the surface of the water, and it with a fork, he must be a little under the fish before he can get the fish, and the shadow of the fish is floating on the surface of the water. The boatman holds the boat, half as high as it is in the water, and it looks like it is bending, and it is all a shadow in the water. If this is the case, then what is there to doubt that the moon is blocked by the earth?

A solar eclipse simply means that the moon obscures the sun...

A total solar eclipse is the visual diameter of the moon" = the sun, just when the sun is completely occluded, and the two have the same center of the moment...

An annular solar eclipse is the visual diameter of the moon, and the moon does not completely cover the sun, but the two still have the same center of the circle...

A solar eclipse is a solar eclipse that no matter how large or small the moon is visually is, as long as it covers the sun, and there is no moment when the two are in the same circle...

The moon is not always that big, and its size will change as its orbit changes... And for people at the same time, in different places, the size of the moon will be different... So sometimes you can see a total eclipse in some places, and only partial erosion can be seen in some places...

Lunar eclipse simply means that when the earth is illuminated by sunlight, there is a projection of the earth facing away from the sun, and when the moon moves into this shadow, it produces a lunar eclipse

This shadow can be divided into umbra and penumbra, the moon is called a total lunar eclipse in the umbra, and the lunar eclipse is called a partial lunar eclipse in the penumbra