What is the relationship between the sun, the earth, the moon, the sun, the moon and the earth?

To put it simply, the phases of the moon are the various shapes of the moon.

Its variation is due to:

1。The moon itself does not emit light or is transparent, and only shines by reflecting the sun's rays.

2。The result of the changing positions of the Sun, Earth and Moon.

And then you just have to memorize six words: go up to the west and go down to the east.

On the first day of each month, the new moon rises and sets at the same time, and the moon is not seen all night.

The seventh and eighth first quarter moon is the first half of the night when you see the moon in the western sky.

At this time, the moon is bent to the west.

Fifteen Sixteen Full Moon The sun and the moon rise and fall one after another, and the moon is visible all night.

2223 The second quarter moon is the second half of the night when you see the moon in the eastern sky.

The moon is bent to the east.

The moon itself does not emit light, it can only reflect the sun's brilliance. Thus, under the light of the sun, the Moon is forever divided into a light hemisphere and a dark hemisphere. But on Earth, the Moon sometimes has more light parts and sometimes more dark parts; Sometimes the light part is expanding, and sometimes the dark part is expanding.

The changing conditions of the light and dark parts of the moon are called the phases of the moon.

The different phases of the moon are related to the direction in which the moon is observed. If you observe the Moon from the far side of the Moon, the Moon is almost entirely dark, and the Moon is called a crescent. On the other hand, if the Moon is observed from the Sunward direction, the Moon is almost entirely bright, and the Moon is called a Full Moon. The change of the moon phase is the process of gradually changing from a new moon to a full moon, and from a full moon to a new moon.

When the crescent moon appears, the moon and the sun are on the same side of the earth, which is called the conjunction of the sun and the moon, also known as the "new moon". When the full moon appears, the moon and the sun are on opposite sides of the earth, which is called the sun-moon opposition, also known as "looking". Therefore, the change of the moon phase can also be called the synodic change.

The moon phases change periodically. On the first day of the lunar calendar, the moon cannot be seen on the earth, and this day is the new day. A day or two after the new twent, in the evening the western sky revealed a curved moth crescent, convex in the direction of the setting sun.

Later, the position of the Moon gradually shifted eastward relative to the Sun, and the bright part expanded day by day, and after five or six days, it became the "first quarter moon" with half light and half (the western half bright), and the sunset was due south of the observer. Seven days later (around the fifteenth day of the lunar calendar), the full moon arrives, and at sunset, the sun is in the west and the full moon is in the east, looking at each other from the earth. The full moon rises in the east in the evening and sets in the morning the next morning, shining all night.

After the full moon, the western part of the moon becomes increasingly scarce, and after seven days, it becomes the "last quarter moon" with half light and half dark (the eastern half is bright). The last quarter moon rises in the middle of the night. After the last quarter of the moon, the moon continues to deficit and becomes the waning moon that hangs in the eastern sky before dawn.

The waning moon in the sky is getting closer and closer to the sun, and the bright parts are becoming less and less, until it finally turns in the same direction as the sun, and the moon turns all black, and the new moon comes again.

The new moon and the full moon, the first quarter and the second quarter moon all appear periodically, and the time from this new moon (or full moon) to the next new moon (or full moon) is the moon phase change cycle, which lasts about 29 and a half days. This cycle is called the synodic cycle, and the lunar calendar is set as one month according to the synodic cycle, which is also called the synodic month.

The forces are reciprocal, but because of the size, the weight, the difference is so much that it hardly affects much.

The moon revolves around the earth for nearly 24 hours, which is about the rotation of the earth, which just shows that the moon is rotating, because from a fixed point on the earth's surface, the moon is always in a position, and the moon should not rotate, and the reason why it is not attracted by gravity is that the attracted planet also has a certain amount of resistance, how can it always be in that position?

In the second half of the 18th century, Copernicus's heliocentric theory had established itself and Newton's law of gravitation had been established. At that time, it was already known that the six major planets, including the Earth, Mercury, Venus, Earth, Mars, Saturn, and Jupiter, had all grasped the laws of their motion. You see, let's talk about this situation, now we take the average distance from the earth to the sun as an astronomical unit, which is about equal to 100 million kilometers, let's measure the distance from these six planets to the sun, you see:

Mercury, Venus, Earth 1, Mars, Jupiter 5, Saturn, is there a pattern to this number? There is no pattern, one is bigger than the other. Is there any other pattern?

You don't see any pattern, do you? Someone is using their brains, this is this person, this person is called Titius, a German. In 1766, we told him that he was a good person, that he was the spirit of science, and that if he didn't say it well, he was hollowing out his mind, and he was thinking, where did this figure come about?

He came up with this method, starting with 3 to write a string of numbers, each number is twice as large as the previous number, and then adding a zero to the front, that's it, right? It's a string of numbers, it doesn't make sense, it doesn't make sense at all, and you're not a geometric odd number, right? Removing zero is a geometric odd number, and putting zero on it is not a geometric odd number.

And then he added all of these numbers to a four, and it became the next row all the way up to 196, and the wonderful thing was that it was behind, and then he divided all the numbers by 10, and then this strange phenomenon happened, and he put up the number of the astronomical units of the distance from the planet to the sun that I was talking about. You see, this number is amazing, this is the Titius array72, of course the Earth is 1, this is, there is a piece missing here, then Jupiter, this Saturn is 9, this is 10, and then this is Uranus did not find it at the time, you see this phenomenon is very strange, he just uses his brain, moves around, and finds this number.

This number is called the Titius array, and it is very similar to the distance from the planet to the sun. Then Titius noticed that there was one star missing, so we said to look for the "lost" planet, this, according to his array there should be a star, this no, he didn't say anything.

Have you graduated from primary school?

I knew this question, but I just came to try to know if there were any talents, but I didn't expect that they were all stupid, and the problem couldn't even touch the edge, and there were even people who put forward the theory of "universal rejection", which is really a fallacy and heresy.

Note: I'm Yuan Pinjun.

The moon revolves around the earth for nearly 24 hours, which is about the rotation of the earth, which just shows that the moon is rotating, because from the fixed point of the earth's surface, the moon is always in one position, and if the moon does not rotate, how can it always be in that position?

The sun is big, the earth is small, and the earth runs around the sun.

The earth is big, the moon is small, and the moon runs around the earth.

The forces are reciprocal, but because of the size, the weight, the difference is so much that it hardly affects much.

The reason why it is not attracted by gravity is that the attracted planet also has a certain repulsion.

The moon is always in one position.

The relationship between the Sun, the Moon, and the Earth is:

All three are stars of the solar system and belong to the same solar system.

The Earth revolves around the Sun.

The Moon revolves around the Earth, and the two form the Earth-Moon system, and both revolve around the Sun at the same time.

The Sun is the central body of the solar system and occupies the overall mass of the solar system. The eight planets in the solar system, asteroids, meteors, comets, outer Neptune objects, and interstellar dust all revolve around the Sun, which revolves around the center of the Milky Way.

Earth is one of the eight planets in the solar system, the third planet in order from near to far, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, 100 million kilometers away from the sun.

The Moon, popularly known as the Moon, is the Earth's only natural satellite and the fifth largest in the solar system.

The solar system and the system of celestial bodies that orbit the sun at its center and are governed by its gravitational pull are called the solar system. The members of the solar system include the Sun and the planets around the Sun (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), more than 2,000 asteroids with confirmed orbits, 66 moons, and a large number of comets and meteoroids.

Its volume is 100 million cubic kilometers, 10,000 times that of the Earth, the central celestial body of the solar system. A medium-sized star in the Milky Way. It is 100 million kilometers away from the earth, with a diameter of about 1,392,000 kilometers, and it takes more than 3,500 years to walk from the earth to the sun, even if you take an airplane, it will take more than 20 years.

The average density is gram cubic centimeter, the mass gram, the surface temperature is about 6000, and the core temperature is 10,000. From the inside to the outside, they are the solar nuclear reaction zone, the solar troposphere, and the solar atmosphere. Thermonuclear reactions are constantly taking place in its central region, and the energy produced is radiated into space.

One in 500 million of this energy radiates to the Earth, becoming the main source of light and heat on Earth. Stars also have their own life histories, from birth, growth, aging, and eventually death. They come in different sizes, colors, and evolutionary journeys.

The star's connection to life is not only manifested in the fact that it provides light and heat. In fact, the heavy atoms that make up planets and living matter were created during the explosions that occurred at the end of the lives of some stars. The sun is an ordinary star.

Astronomical symbols:

Volume: 1 of the Earth's volume

302,500 times.

Rotation period: 25-30 days.

Distance between the nearest stars: light-years.

Cosmic years: 225 million years.

Diameter: 1,392,000 km (109 times the diameter of the Earth).

Radius: 696000

Kilometer. Equatorial circumference:

Mass of 100 million meters: kilograms (332 of the Earth

946 times) temperature: about 5770 (surface).

15.6 million

core) 5 million (corona).

Volume: 10 27

cubic meters (1.3 million times the Earth).

Total radiated power:

Joule seconds. Average density:

grams cubic centimeters.

Average distance between the Sun and Earth: 150 million.

km,m Sunlight propagation speed: 300,000 kilometers per second.

Age: about 5 billion years old.

1.The trajectory of the Moon.

The Moon is a natural satellite of the Earth, and it orbits the Earth. At the same time that the Moon is moving around the Earth, the Earth is also moving around the Sun. The Moon's trajectory around the Earth is elliptical, and its orbit is somewhat tilted, so the Moon appears sometimes closer to the Earth and sometimes farther away from the Earth.

And when there is a moon and the sun, the moon will take different shapes, which is the moon phase.

2.The relationship between the Moon and the Earth.

The Moon is a natural satellite of the Earth, and there is a gravitational force between the Moon and the Earth. This gravitational action leads to the emergence of tidal phenomena. In the process of the moon's motion, the gravitational pull of the moon is always opposite to the center of the earth, and the moon with an elliptical orbit is farther away from the earth at one end of the orbit, the gravitational pull is less, and the gravitational pull of the earth is also less, so the ocean at that end forms the so-called tidal uplift.

At the other end of the orbit, the Earth's strong gravitational pull deforms the Earth, and the ocean recesses into the so-called tidal fall.

3.The formation of the phases of the moon.

The positional relationship between the Moon and the Sun affects the brightness and shape of the Moon, which is the moon phase. When the Moon is right between the Earth and the Sun, we see the far side of the Moon, which is black and is called the Crescent. As the Moon passes between the Earth and the Sun, the brightness of the Moon as seen gradually increases, until the Moon is on the opposite side of the Sun, when we see a Full Moon, at which point all the positive sections of the Moon are illuminated.

After the bend is burned, the moon goes from full moon to new moon, and this cycle is a moon phase.

4.Lunar and solar eclipses.

The positional relationship between the Moon and the Sun not only affects the brightness and shape of the Moon, but also produces lunar and solar eclipses. A lunar eclipse is a phenomenon that occurs when the Moon moves between the Earth and the Sun, and the Sun is obscured by the Moon; A solar eclipse is when the Moon is located exactly between the Earth and the Sun, and the Moon blocks out the Sun's rays and creates a shadow on the Earth. These two phenomena were considered bad omen in ancient times, but modern science can already explain the mechanism of their occurrence.

5.Exploration and use of the Moon.

The moon is one of the objects of human research, and since the 60s of the 20th century, countries have carried out many explorations of the moon. The most representative of these is the Apollo program of the United States, under which the first human landing on the moon was realized. In addition, the Moon is also considered a potential base for future space exploration, as there are some materials and resources on the Moon that have potential future utilization.

For example, scientists believe that the moon's oxygen, water, iron and other resources can provide energy and materials to support human exploration of space.

6.Summary.

The relationship between the position of the moon and the sun affects the shape and brightness of the moon, and also affects the occurrence of tidal phenomena on the earth and natural phenomena such as lunar and solar eclipses. The moon is also one of the objects of human scientific research and space exploration, and at the same time, to a certain extent, it also provides a resource base for future space development.