Does the earth revolve around the sun? The sun revolves around the earth, or does the earth revolve

Earth's orbit and direction In the process of the earth's revolution, each point on the path it passes through is on the same plane and forms a closed curve. This closed curve of the Earth's revolution is called the Earth's orbit. If we think of the Earth as a point of mass, then the Earth's orbit actually refers to the orbit of the Earth's core.

Strictly speaking, the median position of the Earth's revolution is not the center of the Sun, but the common center of mass of the Earth and the Sun, and not only is the Earth revolving around this common center of mass, but the Sun is also revolving around that point.

This is because of the gravitational force, in this case, as long as the initial velocity is not towards this center of mass, it will move in a uniform circumferential or elliptical motion, and it will move in a uniform circumferential or elliptical motion.

In fact, strictly speaking, the Earth does not revolve around the Sun, but around the center of mass of the system that the Earth and the Sun make up (if the influence of other celestial bodies is not taken into account). This is because the effect of gravity is concentrated in this point, which means that the earth seems to be attracted to this one point. After studying high school physics, I know that in this case, as long as the initial velocity is not towards this center of mass (the earth is obviously not moving towards this center, the lucky one) will make a uniform circular or elliptical motion, in fact, the real circular motion does not exist, because there is resistance, its speed will continue to decrease, of course, this decrease is very small on the earth, otherwise we would have been baked.

Since the mass of the Sun is much greater than that of the Earth, the center of mass mentioned above can almost be considered to be in the center of the Sun. So there's nothing wrong with the Earth revolving around the sun.

In addition, there is a more popular saying that in the universe, space is distorted, and we look at the earth revolving around the sun, but in fact, the earth is moving in a straight line, but not in the space around the sun is distorted, so we seem to be moving in a circle.

The earth moves in a nearly circular motion around the sun, and the trajectory of the movement is called the orbit, that is, the ecliptic, and the time it takes for the earth to orbit the sun is a year on the earth.

The earth revolves around the sun.

The earth revolution around the sun. Just as the rotation of the earth has its own unique regularity, the rotation of the earth due to the action of the sun's gravitational field and rotation also has its own laws.

The rotation of the earth follows the laws of the earth's orbit, the earth's orbital plane, the yellow-red angle, the period of the earth's revolution, the speed of the earth's revolution and the effect of the earth's revolution.

In the Earth's orbit, there is a point closest to the Sun, called perihelion, and a point farthest from the Sun, called aphelion. For example, in 1982, the time of the Earth's perihelion was 19 o'clock on January 4, and the time of aphelion was 22 o'clock on July 4.

Since the perigee year is 25 minutes and 7 seconds longer than the return year, the date of the Earth's perihelion and aphelion is delayed by one day every 57 years.

Middle distance point: This is the end of the minor axis of the orbital ellipse. For example, on April 3 and October 5, 1982, the Earth passed through the mid-range point.

The plane on which the Earth's orbit is located is called the Earth's orbital plane, also known as the ecliptic plane.

The sun rises in the east because of the rotation of the earth, and "rising" is only a relative word, when people take the earth as a reference, they assume that the earth is not moving, so the sun "rises". It's like sitting in a speeding car and seeing a tree running backwards, is the tree really running? No.

It's all about relativity.

Hee-hee.

It is the sun that revolves around the earth, because man is on the earth, not on the sun.

But if you look at it astronomically, it is still the earth that revolves around the sun, because no matter how strong the self-consciousness is, strength still plays a decisive role, the sun is a star, and the earth is a planet.

The earth revolves around the sun.

The movement of the earth around the sun is called the revolution of the earth. Because the earth circles the sun along with other celestial bodies in the solar system, and the sun is their common central celestial body, it is called "revolution". The direction of rotation of the globe is counterclockwise, which is the same as the direction of rotation.

The revolution of the earth is a periodic circular motion, therefore, the speed of the earth includes two aspects: angular velocity and linear velocity. If we use the sidereal year as the period of the Earth's revolution, then the average angular velocity of the Earth's revolution is 360° per year, which is 360° of the Earth's revolution on the sun, which is about 59 8 per day.

Earth Formation

The history of the earth is very long. According to radiocarbon dating, the solar system was formed about 6.5 billion years ago, while the native Earth was formed about 6.5 billion years ago. Theoretically, the formation of the Sun began with the gravitational collapse of a huge cloud of hydrogen molecules 100 million years ago, and most of the collapsed masses were concentrated in the center, forming the Sun.

The rest of the space rotates and flattens out to form a protoplanetary disk, which in turn forms planets, moons, asteroids, comets, meteoroids, and other small solar system bodies. The nebula hypothesis asserts that the microasteroids that form the Earth originate from the massive mass with a diameter of 1 to 10 kilometers that is formed by gas, ice particles, and dust after accretion and collapse.

These materials grew over 10 million to 20 million years to form the native Earth. The nascent Earth's surface is an "ocean" of magma.

The earth revolves around the sun. It is the revolution of the earth.

The earth revolution around the sun is the rotation of the earth around the sun. Just as the rotation of the earth has its own unique regularity, the rotation of the earth is caused by the gravitational field of the sun as well as the action of rotation. The rotation of the earth also has its own laws.

The laws of the earth's revolution are from the earth's orbit, the earth's orbital plane, the yellow-red angle, the period of the earth's revolution, the speed of the earth's revolution and the effect of the earth's revolution.

Every point in the Earth's orbit is on the same plane, and this plane is the Earth's orbital plane. The Earth's orbital plane appears as an ecliptic plane on the celestial sphere, which is in the same plane as the plane in which the Sun's annual apparent motion path is located.

The rotation and revolution of the earth are simultaneous, and on the celestial sphere, the rotation is represented by the celestial axis and the celestial equator, and the revolution is represented by the yellow axis and the ecliptic. The celestial equator is on one plane, and the ecliptic is on another plane, and the plane on which these two concentric circles are located constitutes an angle of 23°26, which is called the angle of the yellow and red cross.

Anniversary Movement of the Sun:

1. The annual parallax ellipse of the sun is the ecliptic, reflecting the position of the earth's orbital plane on the celestial sphere, and the spring and autumn equinoxes indicate the position of the intersection line of the earth's orbital plane and the red bumper pavement plane on the celestial sphere.

2. The position of the Sun on the ecliptic reflects the position of the Earth in its orbit. For example, if the Sun is at the vernal equinox, the Earth is at the autumnal equinox.

3. The apparent motion of the sun on the ecliptic reflects the direction of the earth's revolution.

4. The period of the annual apparent motion of the sun reflects the cycle (years) of the earth's revolution.

5. The angle of the sun's annual apparent motion reflects the angular velocity of the earth's revolution.