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The moon is originally a planet, constantly revolving around the earth, so sometimes it is not visible.
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There is a moon during the day because the moon is bright enough to appear in the sky; Its duration above the horizon coincides with that of the Sun and will also occur during the day. The moon itself does not emit light, and it is bright because it reflects the sun's light. Interestingly, the Moon is actually quite dark, with only about 3% of the sunlight shining on the Moon's surface being reflected, and that only 3% of the reflected light is enough to illuminate our night sky.
The rotation and revolution of the MoonThe rotation of the Moon is equal to the period of revolution (known as tidal locking), so the Moon always faces the Earth on the same side. The Earth's ocean tides arise mainly due to the gravitational pull of the Moon. Because the tidal force of the earth's oceans is opposite to the direction of the earth's rotation, the earth's rotation is always subjected to an extremely weak force that "brakes and dissipates" the earth's rotation and accumulates for a long time.
There is ample evidence that the Earth's rotation cycle is getting slower and slower, and the time of the day is increasing extremely slowly, about 1 second in a few years; Due to the Earth's reaction force, the Moon slowly moves farther and farther away from the Earth, moving about a centimeter away from the Earth every year. The ratio of the size of the Moon to the Sun is similar to the ratio of distance, making it almost the same apparent size as the Sun, and during a solar eclipse, the Moon can completely obscure the Sun and form a total solar eclipse.
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The moon is very close to the Earth, and although it does not emit light in its own lead posture, it easily reflects the sun's rays, and its clear color and close proximity make it look like a perfect mirror, so it can be seen during the day.
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The reason why there will be a moon during the day: Paidan talks1. The moon can be seen during the day due to different brightness, which may be due to the different brightness. In the early morning or late afternoon, when the sun is in a state of late rise or set, the brightness is low, and the blue sky cannot cover the moon.
2. The sun and moon shine together, and the moon can be seen during the day, which may be the phenomenon of the sun and moon shining together. The Earth's orbital orbit around the Sun is one year, while the Moon's orbit around the Earth is twenty-seven days.
3. The shape of the moonThe shape of the moon will change continuously during the course of a month.
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1.At the beginning of the lunar month and the end of the month, the angle between the moon and the sun is very small, and it seems that the moon is near the sun, and it is possible to see it during the day, while near the fifteenth lunar month (full moon), the angle between the moon and the sun is very large, and when the sun sounds, the moon has already set or has not risen, so it cannot be seen.
2.It has to do with the weather: when the air is good and visibility is high, it is easy to see.
3.The sun's rays are too strong and too bright, and when there is a lot of pollution, it is ugly.
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There is also a moon during the day, in fact, the moon is always there, the moon appears in the daytime, which is related to the relative position of the moon, the earth and the sun, the moon itself does not shine, it emits its own light by reflecting the sun's light, at this time the distance between the moon and the earth is close, its own brightness will be more obvious than the surroundings, so the moon can also be seen during the day.
Why is the moon also seen during the day.
On a clear night, we will see the moon hanging in the night sky. Most people think that the moon only appears at night, which is a misconception, in fact, the moon is always there during the day, but we can't see it. The moon itself does not emit light, but it shines by reflecting the sun's rays.
During the day, the sun's rays are so intense that they obscure the faint rays of the moon, and only at night can the moon's rays be noticed. The positions of the Moon, the Earth, and the Sun are constantly changing, and if the Moon is close to the Earth during the day and reflects enough of the Sun's rays, it will be brighter than its surroundings, so we can see it.
The size of the moon seen on the earth should be according to the moon phase, the moon revolves around the earth, the earth revolves around the sun, and the moon seen on the earth is different every day.
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