Why is a solar eclipse where the sun is sometimes white and sometimes red?

The temperature is not the same.

The color temperature is different.

Normally, because the earth's atmosphere scatters the light of the intense photosphere, the chromosphere is submerged in the blue sky, and we cannot see this layer. It is only during a total solar eclipse that you have the opportunity to see it directly.

After the diamond ring of the total eclipse phase disappears, we only have two seconds to admire it before the crimson chromosphere disappears.

This is the chromosphere photographed during the total solar eclipse in 2001.

Outside the chromosphere is the coronal layer, which is the sun's atmosphere, which is higher precision and darker, and can only be seen during a total solar eclipse.

Because in the case of a total solar eclipse, the photosphere is completely occluded, and then the chromosphere and corona can be seen.

The luminous region of the sun is mainly in the photosphere, and the luminous intensity of the chromosphere and corona is much weaker than that of the photosphere, and the chromosphere and corona are normally obscured by the light emitted by the photosphere, so they are generally not visible.

The real size of the sun is larger than the photosphere, but the light around the sphere is too dazzling, so the surrounding chromosphere and corona layer are difficult to observe.

This is similar to how in the daytime, the light of fireflies is very inconspicuous, and at night it appears very bright, and the total solar eclipse is to block the background light of the light sphere.

The chromosphere and corona are the solar atmosphere, above the photosphere, the solar photosphere is blocked during a total solar eclipse, but the chromosphere and corona above the photosphere are not blocked, and because the sky brightness is extremely low during the total solar eclipse, this is the best time to observe the chromosphere and corona.

Because somewhere else is in the way.

In fact, it is super simple, the moon revolves from west to east, and both phenomena are the same (nonsense), the moon is cut from west to east. But the problem is that your focus is different, you look at the sun during a solar eclipse, you look at the moon during a lunar eclipse, and the eclipse is the sun during a solar eclipse, and the solar eclipse begins after its western edge contacts the eastern edge of the moon, so the sun is missing in the west; The eclipse of the moon is the moon, and the eclipse begins after the western edge of the earth's shadow comes into contact with the eastern edge of the moon, so the moon is missing from the eastern edge.

The Sun-Moon Earth is aligned in a straight line, and the Moon blocks the Sun. The Moon is between the Earth and the Sun.

This should be seen in terms of the orbit and orbit of the Earth and the Moon. About every 28 days, the Moon turns between the Sun and the Earth, similar to a solar eclipse, except not necessarily in a straight line。This is why solar eclipses occur at the beginning or end of the lunar month.

At this time, if the sun's rays are not very strong, such as at sunset, the moon can be seen at the same time. In the next few days, the sun and moon are at an angle, but they can still be seen at the same time.

So when will you be able to see it? From actual observation experience, it is easier to see the phenomenon of "the sun and the moon shining together" in two situations:In the afternoon of three days before and after the first quarter, the Moon will be in the southeast; Around the end of the quarter, in the morning of three days, the Moon will be in the southwest

In both cases, it is easier to see the phenomenon of "the sun and moon shining together", but in fact, at other times, the sun and the moon are often above the horizon at the same time, but the probability of being seen is relatively small. There are two main reasons for this: the moon's small phase (i.e., crescent-shaped) is not bright enough at this time, and the blue sky and white clouds alone can erase the crescent moon from the observer's field of view.

The moon is located at a low level, and although it meets the brightness requirement (i.e., full moon), it is often obscured by thicker atmospheric dust rings or buildings. In the process of continuous observation, a pattern can be discovered, if you want to see "the sun and the moon shine together".It is necessary to ensure that the brightness of the moon is large enough, and the position of the moon is high enough, and these two are precisely the relationship between one and the other, and the relationship between the two and the other.

However, there will still be a fixed number of days in the month to ensure that the moon is not too bright and the position is not low, and these are the two time periods mentioned at the beginning.

During these two periods, the moon is almost a standard half-moon in shape, much brighter than the blue sky background; And the moon at this time is also located high in the sky, so it will not be obscured by buildings.

The sun and moon shouldn't seem to meet, why sometimes the moon can be seen during the day.

This may be due to the fact that the orbital period of the Earth and the Moon is different.

Because the days are long and the nights are short, the moon comes out before it gets dark.

Because sometimes the earth turns to a certain tipping point.

Because they don't turn at the same speed, fast and slow.

Because it's a sight of the sun and the moon shining together.

That moon may just be a phantom, resembling a mirage.

I think it's because of the clouds.

Because of the angle of the Earth's rotation.

height and refraction of clouds.

That's the atmosphere of the sun, and there are actually some of them, but the sun is 1 million times brighter than these apertures, so it's usually invisible.

When a solar eclipse occurs, you must not use the naked eye or any optical equipment, such as a telescope, to look directly at the sun, because the extremely strong solar rays will not only fail to observe the eclipse properly, but will even burn your eyes, which can seriously lead to blindness.

If you look directly at the sun for a long time, the sun's ultraviolet and infrared rays will cause the macular of the retina to be burned, which can cause "solar retinitis", which is almost impossible.

Let's put it this way, the lens of the human eye is a convex lens like a magnifying glass, the focus is on the retina, you think about it, the experiment of burning paper after the magnifying glass is concentrated, thinking about the magnifying glass of the eye lens, you will understand, it will burn the retina. As for solar eclipses, unless the sun is basically obscured, there will still be damage to the eyes. I hope my answer is helpful to you

Because the sunlight is so strong, if you look directly at the sun, you can't see the part that is obscured by the eclipse, and you won't be blind if you look directly at it for a short time, and it's not that severe.

The sun is too bright, and after the eye concentrates the light, it will cause damage to the optic nerve.

The sunlight is too bright and can harm the eyesight.

The Moon is much smaller than the Sun, and when the Moon passes between the Earth and the Sun, the shadow can only cover a small part of the Earth, and those who are in the full shadow of the Moon can see the total solar eclipse, while those who are located in the shadow edge area can only see the partial solar eclipse, and those who are not in the shadow area at all can not see the eclipse.

When viewed from space, the Moon passes through the so-called penumbra, where only part of the sunlight is blocked. This will make the moon slightly darker. As the Moon continues along its path, it enters the so-called umbra zone, where all light from the Sun is obscured.

The reason for a total solar eclipse is simply that the moon is between the earth and the sun, blocking the sun's rays.

On Earth, a total solar eclipse can be seen by a person within the moon's shadow (umbra to be exact) on the ground.

The distant sunlight can be seen as parallel light, and the moon is smaller than the earth, so the moon's shadow cannot cover all the earth's daytime areas, so only some areas can see a total solar eclipse.

Therefore, the main reason why a total solar eclipse can be seen in some places and cannot be seen in others is that the Moon is smaller than the Earth.

Because the shadow cast by the Moon on Earth is relatively small, only a small fraction of them can have a total solar eclipse.

And because the moon is moving, the time of the solar eclipse varies from place to place, for example, in Canada at sunrise, and in China at sunset.

If you are not in the total eclipse zone, you will not see a total solar eclipse, but only a partial solar eclipse.

In short, when a solar eclipse occurs, the moon blocks the sun, and when seen on the earth, the shadow of the moon after being irradiated by the sun forms a shadow area on the earth.

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.

There are many high mountains on the surface of the moon, and the edge of the moon is untidy. When the valley on the edge of the moon fails to completely cover the sun at the moment of eclipse or the arrival of light, the uncovered part forms a luminous area, like a crystal "diamond"; The pale red ring around it forms the "ring" of the diamond ring, which looks like a diamond ring inlaid with brilliant gemstones. Sometimes many particularly bright rays or points of light are formed, as if a string of pearls is set around the sun, called the Berei pearl (Beli was a French astronomer).

Whether it's a partial solar eclipse, a total solar eclipse, or an annular solar eclipse, the time is very short. There are also limited areas where solar eclipses can be seen on Earth, because the Moon is relatively small, and its umbra is also relatively small and short, so the umbra does not sweep wide and for a short time on the Earth, and because the average length of the lunar umbra (373293 km) is less than the average distance between the Moon and the Earth (384,400 km), for the whole Earth, annular solar eclipses occur more often than total solar eclipses.

Solar and lunar eclipses are typical examples of light propagating in a straight line in celestial bodies.

For example, the sun is a basketball, the moon is a volleyball, and the earth is a soccer ball, and the basketball (left) shines. Volleyball put (middle)....The soccer ball (right) and the Earth are a huge sphere, so the eclipse can only be seen from where we live in a line with the other two spheres.

A total solar eclipse is when the moon blocks the sun between the sun and the earth.

It also has something to do with the weather, and then it's a matter of angle, if the earth is flat, the sky is clear, and everyone can watch hoho together