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Because the sky is bright during the day and dark at night, even if there are stars in the sky during the day, you can't see it. At night, when it's dark, you can see the stars.
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Because the sun shines very brightly during the day, the brightness of the stars cannot be seen without this brightness, which cannot be set off.
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It is because the sun is so bright during the day that the energy of the sun is so great that the stars cannot be seen.
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This is because the light is relatively bright during the day, and the light emitted by the stars is very weak, so there is no way to see it.
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Because there is the sun during the day, the brightness of the sun is too high, and under the influence of the sun, the stars cannot be seen.
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It is because the sun is particularly illuminated, the sun is too bright, and it has been illuminated by strong lights, so it is impossible to see such stars.
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Because the mass of the stars is very small, the light emitted is very small, and the position of the stars is not visible during the day under the sunlight.
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Stars are actually celestial bodies, and they are glowing all the time, but they are so far away from us that they can only be seen when the weather is dark.
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When we say daytime, we mean that the sky is relatively bright.
or rather bright, or it is called night or evening and dawn. Since the brightness of the sky is greater than the brightness of the stars we call at this time, that is, the brightness of the sky obscures the brightness of the stars, so the stars are not visible. Of course, this means that the sky is quite bright.
Only when the sky is dark. For example, at night or evening and at dawn, or during a solar eclipse, the stars can be seen with the naked eye. A very important condition is that the sky is relatively clear, and the dark clouds are not visible.
Stars are actually celestial bodies. In fact, most of these celestial bodies that we can see, except for a few planets, are stars. They are lit up all year round, all day and night.
The reason why we can't see the stars during the day is because part of the light in the sun is scattered by the earth's atmosphere during the day, which illuminates the sky very brightly, and we can't see the stars. If there is no atmosphere, the sky is black and empty, and even if the sunlight is very strong, we can see the stars during the day.
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Because the background brightness of the sky is too high during the day, and the apparent brightness of most stars is lower than the background brightness, they cannot be seen during the day.
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During the day, the atmosphere reflects sunlight, making the atmosphere appear bright blue, and most stars are much less luminous than the brightness of the atmosphere, making them invisible.
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During the day, the stars cannot be seen because the light of the sun is stronger than the light of the stars, and the distance between the stars and the earth is much farther than that of the sun.
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During the day, the atmosphere reflects sunlight, making the atmosphere appear bright blue, and the background of the sky is too bright during the day, and most stars are much less luminous than the brightness of the atmosphere to be seen.
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There is sun during the day. The sun is so close to us that it overshadows the light of the other stars.
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Reason: During the day, some of the sun's rays are scattered by the Earth's atmosphere, illuminating the sky very brightly. Sunlight is much brighter than the stars.
There are two main factors that determine whether people observe the stars as light or dark:
1. The size of the star's ability to shine.
2. The distance between the stars and people.
Astronomers usually classify the ability of stars to shine into 25 magnitudes.
The difference between the most luminous and the least luminous is about 10 billion times.
A star that is close to people has a strong ability to emit light, so people will light up when they see it. However, even if a star is quite capable of emitting light, if it is very far away, it may not be as bright as a star that is tens of thousands of times less capable of emitting light.
The brighter the star, the smaller the magnitude. One of the most common magnitude systems is the U (ultraviolet), b (blue), V (yellow) trichromatic system (see the photometric system "class=link> photometric system"), absolute visual magnitude m=+, etc., chromatic index b-v=, u-b=. The color temperature can be determined by the color index.
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This question is asked.
During the day, the sky is brightened by the action of the atmosphere. The sunlight is much brighter than the stars, so we can't see the stars. Let's do a little experiment:
Find a small flashlight and shine it on the wall outside the house in the midday sun, and as a result, there is nothing on the wall. When it gets dark, you shine a small flashlight, and the flashlight is clearly reflected on the wall, which is the same as not seeing the stars during the day.
Hope it helps.
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The sunlight was too strong and obscured.
In fact, at night when the moon is brighter, there will be fewer stars than when there is no moon or when the moon is darker.
With some special methods, it is possible to observe the stars during the day. But I don't know exactly how.
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Close your eyes and turn around 85 times and you'll see it.
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Daydreaming, why can't you see the sun at night?
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Because you can see Mao Mao during the day.
And Huanhuan saw Maomao.
Of course, you can't see the stars
You're a pig so you can't see it haha.
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Because the stars are asleep, they wake up at night.
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Because the sun is too strong during the day, you can't see the stars.
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Can you find your gold teeth in the pile?
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During the day, the planet is facing the sun, and the stars are covered by the violent sunlight, and at night, when they are facing away from the sun, the sunlight is not so violent, and the planets can see the sunlight reflected by the sun.
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Because the stars are hidden.
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Hehe, let me ask you, can you see the sun at night?
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Get knocked unconscious, and you see.
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The stars were covered by the fierce sunlight.
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